If I could ask, do you check the suspicious-looking IPs here ( h-ttp://whatismyipaddress.com/blacklist-check ) or on any other sites like that? One of my websites provided a service which was not allowed to be used with proxies and thanks to the service mentioned here I could easily check whether someone is not using proxy or was not reported as a malicious bot.
That would be greatly useful in cleaning forums of such bots and like.
Anyways, you - as whole staff team - do a great job in hunting for spammers as the forums are pretty clean : )