Ignore the FUD, Ethereum is not a scam. It's actual open source software with multiple popular implementations successfully delivered from a toxic environment with an impressive level of care toward getting the technical aspects right while being as transparent as possible. It's not perfect, about as perfect as any startup I've watched. Don't dump money into anything you don't understand.
EDIT- just as an illustration, I think it's interesting to use the Bitcoin Talk forum search tool. There are 464,000 results for "scam" and 484,000 results for "currency". Spend 5 seconds on the forum to find the word used like it's the coolest slang around. Everything is a scam, because evidence.
I detailed the problems as I saw them as of January here: http://reddragdiva.dreamwidth.org/594396.html Things really haven't improved in any regard.
Satoshi releases Bitcoin quietly to the world and doesnt ask for a red cent in advance from anyone despite creating one of the most important/innovative technologies of the last decade, and then disappears with his mined coins remaining for years unused and presumed lost.
Ethereum guys sell Ether(s) in advance (why for bitcoin of course) promising the moon and the stars in the form of a cryptocurrency + scripting
They put the horse before the cart IMHO, imagine if all those years ago Linus asked everyone to give him 18 and half million to develop Linux, would it be where it is now?
Also, your criticism is only of fundraising politics (which not everyone need agree with you on), not the product. There are many ways to fund great software, and even if you don't like it, crowdsales are one.
Real criticism is welcome, if you have any.