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spam, spam, spam, spam

 
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Would you favour a number of posts before a new user can start a topic?
No
52%
 52%  [ 9 ]
Yes - 5
47%
 47%  [ 8 ]
Yes - 50
0%
 0%  [ 0 ]
Yes - 100
0%
 0%  [ 0 ]
Total Votes : 17

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emordnilap



Joined: 05 Sep 2007
Posts: 13968
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PostPosted: Tue Aug 05, 2008 11:35 am    Post subject: spam, spam, spam, spam Reply with quote

Hi

In relation to these 'spam' posts (sports goods etc) - would it be a good idea for a new user to have a minimum number of posts before they're able to start a topic?
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clv101
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Joined: 24 Nov 2005
Posts: 7630

PostPosted: Tue Aug 05, 2008 11:45 am    Post subject: Reply with quote

Nope. We get more "first posters" starting topics than we get spam. Spam is easy to ignore and delete. Having a minimum post count before posting would deter people from joining/contributing to the site - the opposite of what we want.
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jmb
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Joined: 04 Mar 2007
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Location: Kildare, Ireland

PostPosted: Tue Aug 05, 2008 11:45 am    Post subject: Reply with quote

I don't know whether spambots universally try to start new topics, or tag onto existing ones - that would be an interesting metric.

I'm also not sure whether phpBB has the capability to impose such a restriction, but I'll have a look - there may be an extension that will do this. Mind you, if such things are well known, you can be sure the spammers will just update their own tactics Evil or Very Mad
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jmb
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Joined: 04 Mar 2007
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Location: Kildare, Ireland

PostPosted: Tue Aug 05, 2008 11:49 am    Post subject: Reply with quote

What might be better is to update the images used for the Are You a Human test - I suspect that the spambots know what the standard image set is.

It *might* be acceptable to impose a "new visitors - please introduce yourself by posting on *this thread (link)* to enable board-wide posting" - that would certainly give a large space for spammers to fail to hit, and be hard to automate except by brute force. Would that be too much to require of a new visitor?

Again, caveat is that I don't know if any extension exists for this.
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Mean Mr Mustard



Joined: 31 Dec 2006
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Location: Cambridgeshire

PostPosted: Tue Aug 05, 2008 6:49 pm    Post subject: Reply with quote

Think having a new user 'foyer' might be worthwhile in its own right anyway.
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Adam1



Joined: 01 Sep 2006
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PostPosted: Tue Aug 05, 2008 7:27 pm    Post subject: Reply with quote

Sounds like an update of the "Are you a human test?" would be best. We don't want to do anything to discourage genuine, new posters.
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jmb
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Joined: 04 Mar 2007
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Location: Kildare, Ireland

PostPosted: Tue Aug 26, 2008 2:27 pm    Post subject: Reply with quote

I've made a cheap change to the "are you a human" test.

Going on the assumption that the bots who are bypassing this are recognising a known set of images (the default ones shipped with kittenauth) I've perturbed any such automated test by pasting a small Powerswitch logo into each image. It's quick'n'dirty, but a lot easier than finding a collection of substitute images which match all the criteria. If the bots are doing anything more complicated, like comparing for colour cast average or something, this won't help; neither will it if they're using some brute-force method; but I'm expecting they go for a lowest-common denominator test which will get a lot of default installations. As they say, you only need to run faster than the slowest antelope.

We shall see.
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Vortex



Joined: 16 May 2006
Posts: 6097

PostPosted: Tue Aug 26, 2008 10:33 pm    Post subject: Reply with quote

An 'are you a troll' test is also required.
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jmb
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PostPosted: Wed Aug 27, 2008 12:23 am    Post subject: Reply with quote

That one might be trickier.
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Adam1



Joined: 01 Sep 2006
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PostPosted: Wed Aug 27, 2008 10:44 am    Post subject: Reply with quote

Vortex wrote:
An 'are you a troll' test is also required.


You mean, a bit like the US immigration question "Are you a communist?" - I wonder if anyone ever answered yes to that!
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RenewableCandy



Joined: 12 Sep 2007
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Location: York

PostPosted: Wed Aug 27, 2008 1:25 pm    Post subject: Reply with quote

Adam1 wrote:
Vortex wrote:
An 'are you a troll' test is also required.


You mean, a bit like the US immigration question "Are you a communist?" - I wonder if anyone ever answered yes to that!

I was asked if I wanted to topple the geurve-ment. It was soooooo tempting!
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contadino



Joined: 05 Apr 2007
Posts: 1268
Location: Puglia, Italia

PostPosted: Wed Aug 27, 2008 1:55 pm    Post subject: Reply with quote

Adam1 wrote:
Vortex wrote:
An 'are you a troll' test is also required.


You mean, a bit like the US immigration question "Are you a communist?" - I wonder if anyone ever answered yes to that!


I have. It didn't affect my entry.

The last time I visited, I don't remember that question being on the form.
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jmb
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PostPosted: Thu Sep 04, 2008 12:29 pm    Post subject: Reply with quote

jmb wrote:
I've made a cheap change to the "are you a human" test.

Looks like it was a bit too cheap, as we're still getting some spambots.

I've a list of incremental customisations of increasing effort, and I've just tried the next one down - changing the "select the Xs" text.
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