The level of moderation in Alternate Cryptocurrencies is quite poor, I agree - we desperately need a few more rules and a couple mods here. We don't need censorship, we just need order and to get rid of these damn trolls.
This point has been made quite a few times. In fact, I made a thread in the last few days that got moved to Meta about this where I got fairly good feedback. [Remember when there actually used to be a mod in this sub-forum?]
Regarding bloat and spam, the hardest thing is truly differentiating between those who are legitimately excited about a coin (n00bishness and so forth) from those who are deliberately using sockpuppets to promote a coin. Sure it's much easier to differentiate between those who are trolls (or just acting like one) and those who aren't, but most of the bloat that you can find in this section are from those who pose as n00b contributors.