Pastebin spam
I guess it was inevitable - the bots crawling over the Internet submitting "Search Engine Optimisation" (a.k.a. spam-for-profit) found their way here and started putting crap on the pastebin. I initially wrote the pastebin in a very simple way, with no spam protection. After all, what's the point of spamming on a pastebin, which doesn't hyperlink anything?
Unfortunately, that doesn't rule out the bots which dump their cargo in anything that remotely looks like a form. Luckily, there are a few simple methods that help block this sort of spam, based on the idea of creating a field that looks appealing to a bot, but that a real user should never use. The field got a value? Ignore the request - it's a bot.
This is by no means bulletproof, however the effectiveness (reasonable) compared to the inconvenience to users (none) makes it a worthwhile measure. Statistically speaking - and by this I mean "off the top of my head, based on other people's experience" - most form spam of this kind is from relatively stupid bots which will be fooled by this countermeasure. There is no way that a targeted bot would be hampered, but that just goes back to my previous point of pastebin spamming being a pointless exercise.
And here's a useful site detailing lots of methods of fighting e-mail and website spam (and also my source for the particular fix I'm using): http://fuckthespam.com/?info
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