I think offtopic board is still active(look at it now) since the last posts that are made on threads there are still recent. It also isn't pointless at all, every forum in the internet have their own off-topic board, and bitcointalk should not be an exemption to this. There is also no need to revive it since it is still active. If you are referring to the activeness of quality posters in that board, don't expect them to be active there.