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Need suggestions for automated ways to deal with spam??
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Partner Jeff
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Oct 31, 2013, 4:44 AM
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Need suggestions for automated ways to deal with spam??
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New site owner here (read details here: http://www.rockclimbing.com/...post=2637990#2637990)

Spam sucks.

I want to implement some better anti-spam measures into the software. I know it's somewhat whack-a-mole, but I'm also sure we can make this site harder to spam than it is now.

However, my wife and I have zero experience designing anti-spam features, so before I go read up on it, any suggestions??

This feels like a problem that's been tackled before, so if you know of things that have been successful in other forums let me know.


(This post was edited by Jeff on Oct 31, 2013, 4:56 AM)


iknowfear


Nov 2, 2013, 8:13 AM
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Registered: Sep 8, 2004
Posts: 639

Re: [Jeff] Need suggestions for automated ways to deal with spam?? [In reply to]
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Hi Jeff,

first of all, welcome to our new overlords and all the best!

Non software fixes: find some mods in non US timezones: euros and asians/australians, to fight spam manually during sleepytime in the states.

Software fixes:
- Posting limit for new users of 2 posts a day until cleared (see below)
- New posts by new users need to be screened by level 2 mods (this could be anyone with over 800 or whatever number[ posts).
- No hyperlinks in posts before clearance.

Cheers & all the best
iknowfear


(This post was edited by iknowfear on Nov 2, 2013, 8:14 AM)


JimC


Nov 4, 2013, 8:58 AM
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Re: [Jeff] Need suggestions for automated ways to deal with spam?? [In reply to]
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Unfortunately. this is a really hard one. Here are the "best" methods around these days:

- Hidden captcha field honeypots or negative-captcha. Only bots who scrape the HTML see these fields, and ether OCR or use a human farm to fill them. Anyone submitting with this field filled is a bot. See here for some explination and implimentation ideas: https://github.com/subwindow/negative-captcha


- Domain specific captcha. Have sets of rock climbing specific questions/answers to vet accounts. People who rock climb should know the answers, or be able to find them quickly via google. Bots are lost and human farms are much less reliable. The down here is alienating new climbers or people who are not native English speakers who many not know the answer or be able to find it easily.

- Manual admin verification/approval for every new account. It's not automated, but it will stop most spam right at the gate.


(This post was edited by JimC on Nov 4, 2013, 9:02 AM)


Partner Jeff
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Dec 13, 2013, 1:44 AM
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Jim--that is super useful.

Negative captcha is brilliant, never would have thought of that.

Right now we have no dev/staging server, so we went with manually validating new users as a band-aid, non-scalable solution, but once we get the servers setup a bit better I'll be exploring the possibilities more here.


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