Spambot

[tb1024]

Right below this post you can see a spambot advertising a postal service. This can grow into a larger problem, like what hapenned to Valtteri's in late 2012.

[Wohlstand]

The thing is: lots of Polish spam which useless here
I think, I would make something like better captcha to avoid bot's registrations (since we are has phpBB 3.1 with extensions, I would port my collected kcaptcha thing, which a pretty good captcha, to be phpBB extension and apply it. Non-default captchas are non-breakable for those dumb bots). But thing is when a human posts spam manually, so , I even would make confirmation of a first post by moderators/admins (except introducing zone) and if it's a spambot: super-captcha will avoid those attacks, if it's a bad human, we will not accept his spam and will kick him out

[tb1024]

The strongest CAPTCHAs, IMO, are the ones that rely on human-only features, like recognizing familiar objects or recognizing the same object from different angles. KCaptcha can still be defeated by advanced OCR engines crafted especially to bypass CAPTCHAS.

However, no WatchAds SolveMedia. What were they thinking when making ad-driven captchas?

[Wohlstand]

The strongest CAPTCHAs, IMO, are the ones that rely on human-only features, like recognizing familiar objects or recognizing the same object from different angles. KCaptcha can still be defeated by advanced OCR engines crafted especially to bypass CAPTCHAS.

I would try object recognizing like captchas (there are phpBB extension with that thing)

However, no WatchAds SolveMedia. What were they thinking when making ad-driven captchas?

I will don't use anything which affiliated with ads. You know that I totally disagree ads on PGE site.