I don't see a problem really with shitcoins apart from the PR one - the worthy coins get tarnished with the crap. But crypto is evolution in a crucible, both for the tech and for the 'investors'
Pop into certain other coin threads here and you'll see that there are fools lining up to have their money taken from them, they can't get enough of empty promises, snippets of fake IRC dev chat, and silly diagrams.
While idiots continue to buy obvious garbage, scammers will keep profiting from them.
I have started a thread on this subject and also wrote a blog post, because I have noticed that there's a "witch hunt" against altcoins starting in BTCtalk (e.g. here and here).
It makes no sense, IMO, that some of the BTC people are so against altcoins. For example, if you talk about Darkcoin in other threads some bitcoiners start insulting you out of nothing! But to my surprise, some of these aggressive anti-altcoin bitcoiners are quite pro-LTC why is that?
There are scammers everywhere, unfortunatelly, but some people use the scammers as the excuse to try to start a nazi fight against the altcoins... and I don't doubt that these same people's real intention is to fight against cryptocurrencies in a whole (BTC included).
BTW, I tend to abhor the stupid dictatorial arrogance shown by some intolerant (dishonest?) people... I prefer better open discussion propositions for the community like this one, or this one, for example.