A subforum is definitely the way to go. If people who is not interested on altcoins find the altcoins posts a kind of spam of something worst, with a subforum the problem is solved. If the problem is a hardware or any kind or resources shortage, the first post of  KeyserSozeMC on this thread is saying it all. I really don't see any relevant reason for not having an Altcoin subforum.

Cheers!