Alot of wiki's have been getting hit by spam.
To help counter it, per request and help of other people around said wiki's, I've installed
Title Blacklist and
Spam Blacklist to Fire Emblem Wiki, Lylat Wiki and WikiBound; And then MetroidKing has helpouted in defining the respective MediaWiki pages (MediaWiki:Spam-blacklist and MediaWiki:Titleblacklist). (Thank you, StrategyWiki and ZeldaWiki).
This has helped cut down on the spam, and any new spammers have been added to the blacklists over time.
Anyway. This seems to be more different, but it maybe linked. as far as i can tell, It/he/she is Attacking specifically the forums; so make sure you have changed your password and do so routinely.
The IP addresses of the one's i got so far are:
66.96.16.3287.118.104.20395.143.193.14566.249.9.107Hope it helps.