I really don't see what differentiates counterparty and mastercoin from other altcoins hence why I don't think they deserve their own subforum. As was already mentioned, putting your transaction data into the Bitcoin blockchain doesn't make your coin Bitcoin, it's still an altcoin. That doesn't mean those altcoins are useless, but they're not Bitcoin and they're not Bitcoin 2.0.

By the way, discussion about how an altcoin affects or differs from Bitcoin may be posted on subforums other than alternate cryptocurrencies, so discussions about blockchain bloat caused by altcoins are allowed outside of the altcoin section.