But I don't think Bitcointalk is a suitable platform for "gaming" discussion as in online gaming. One, almost no gamers visit this site. Two, there is no chat or streaming capability. Who's gonna build a live chat in PHP of all languages? (Not Facebook, that's for sure.) So I think that it would be better to actually just use something like Discord for that sort of thing.
Considering "not suitable", you can put almost anything in this category. It's a forum and anything can be discussed as long as there is a board for it. Adding a gaming board is not going to make Bitcointalk great again but it will give a scope for gammer to build their own community like we have gambling community, altcoin community.