Has bayesian filtering been tried on forum posts? (It can work well for emails) If the filter is unsure, the post can be referred to an administrator for moder

Has bayesian filtering been tried on forum posts? (It can work well for emails) If the filter is unsure, the post can be referred to an administrator for moderation (and will subsequently be added to either the spam or ham corpus, training the filter for similar posts). In the case of false negatives (spam gets through), a discrete "report spam" button will allow a moderator to add it to the spam corpus (again training the filter against similar occurences). It might even be possible to use the filter score to reduce "report spam" abuse, i.e. if the filter is fairly certain it's ham, require a larger number of users to report it as spam before bothering an admin with it.