Hi,
I've had success dealing with link spam by setting up the ConfirmEdit extension, but a strange kind of vandalism continues to invade my wiki. Several times each week, an anonymous user will add a nonsense word (or words) to the top of a page. For example:
zbnpujhgr
And that's it! Just one word of gibberish (different gibberish each time). Spam links or spammy-sounding text (e.g., penny-stock adverts) are never added.
It's a different IP every time, so perhaps it's some sort of botnet vandalizing a bunch of wiki sites. However, I don't know of anyone else having this problem, and I can't understand why any spammer would bother adding nonsense words to a wiki. Has anyone encountered this before?
Regardless of the reason, I'd like to find a better way of dealing with the problem. Right now I'm just monitoring the Recent Changes page with my RSS reader and manually rolling back the vandalism when I see it, but that takes time. Is there a better way?
Thanks,
Trevor