Thanks, I hadn't seen that update yet. It would be great if that can be enforced, to claim back the Altcoin board from the spammers.

I've suggested a "reset" before: close all threads, and strictly enforce the rules from then onward, including instant (temporary) bans for anybody who spams. That way, most people will get the hint that spam days are over.

That won't work, as bump bots use hundreds or even thousands of different accounts. A normal user won't delete many posts, and reCAPTCHA requires only one click if you use it only a few times per day from a clean IP.