[TheBit]

Сообщение от Mac

...Искренне надеюсь, что Суффикс и Бит смогут что-либо придумать в ближайшее время, они в этом разбираются...

Первое о чем подумал так это конечно же о Капче. Вылогинился что б проверить нет ли у нас ее уже - оказалось что есть, но очевидно бесполезна.

Второе о чем подумал - система тривиальных вопросов типа "напишите сколько будет 2+2", но все же решил набрать в гугл "vbulletin captcha". Оказалось первое на что вышел - как раз и есть эта система:

This simple hack is meant as a replacement for the default CAPTCHA system in vBulletin. There are two main reasons one might want to do this: firstly, new technology is constantly being developed to crack CAPTCHA images and make spam accounts anyway, and secondly, the more secure the CAPTCHA, the more difficult it is for genuine users to tell what the numbers in the image are. There is also the issue of visually impaired users, and the fact that not all servers are capable of generating CAPTCHA images.

So what does this hack do instead? It asks a question. Any question you want. That's the best part: YOU make up the questions, which means that every forum is unique, which means that it is impossible for spambots to be simply programmed to bypass it at all forums with the hack installed. You can make one or many questions - if you make many, the hack will pick one at random when a guest attempts to register, search, post or send mail through the Contact Us form. Their input is compared with your specified answer, and voilà, if they get it right they're pretty much guaranteed to be human. If they get it wrong, they're given an error message.

It doesn't have to be a complicated question. Heck, you can just make it "Please type 'blah' into this box." Or you can go with inserting a simple image with HTML and ask what is shown on the image. Or you can ask them to tell you two plus two. It's up to you. In fact, this can also be used as a means of forcing people to read the rules by asking for a certain password found there, or if your forum focuses on a specialized subject, ask a question concerning the subject that all your genuine users will be able to answer, but a random troll or "CAPTCHA-sweatshop-reader" will be scratching their head over.

It's simple to install, too: just one product to import, and that's it.

http://www.vbulletin.org/forum/showthread.php?t=124828

Суф, сможешь заняться? Установка вроде тривиальна. Надеюсь багов нет. Я просто ж никогда бюлетенем на занимался, да и нет у меня аккаунтов.