Baaad idea!
The off topics are what keeps this site going, IMO.
Moving them off the front page will make it harder to reach them and therefore less people will bother reading them.
Once there are more on-topic things to talk about (ie. people getting their Pegs and AOnes (with OS4)) I'm convinced that the conversation will turn in that direction.
And BTW., what about all the on-topic threads that still belong in the Talk about section?
I have never had any trouble getting answers for an on-topic question, and I don't see what all the fuss is about.