Comment 2 for bug 395054

Instead of just "regexp filtering", I would see some kind of bayesian filtering, and language based too:

I don't like all of the messages of whom I follow, I'd like to tell to Gwibber that a message is "I don't care" or "Important to me", so a bayesian filter (or another learn based technical solution) would filter the messages to only what I would most probably care about.

I don't care about messages I can't read, but some of the people I follow post messages both in their mother language or in english, and I only care about english ones.