I installed Mollom on my hosted WordPress blog yesterday to take care of the endless amount of spam comments I receive daily.
So far it seems to be working quite well, the only drawback I’ve encountered is that you cannot verify Molloms disposing of valid or invalid spam comments since there’s no dashboard to view the trashed comments themselves. Therefore you must have complete faith in Molloms spam detection and that it’s not shooting down friendlies…
The install though carried off without a hitch right into my hosted wordpress – and so far it’s detected and trashed numerous spam comments.