Only negativity in this thread. You're being offered a desktop environment for free, and all you can do is point out its problems. I think it looks pretty slick, and will give it a try, why are people so nitpicky here?
It's things like [1] that really irk me. Yes, they're working 'hard', yes they deserve compensation, no, there isn't any license conflicts (that I'm aware of) that would make selling eOS illegal, it's the fact that they wrote this justification to make you feel like a thief. Really, it's just an ubuntu clone with a pretty osx-like gui. This isn't really anything amazing or new, and it makes it seem like they're tryin…
If you don't see much difference between the UX of the two DE's, I don't think the difference between the "request for donations" UX is that big either. Perhaps there should be some smallish text saying "$0 is a valid custom amount", but that's it.
Now, there are of course issues to be discussed about this kinds of donations requests, such as, for example, how much of the funds received make it upstream to the developers whose software distros are repackaging. But I have nothing against the idea that you might be asked whether you'd like to pay for the software or get it for free, with the understanding that both are equally valid options, even if the website is designed to suggest that they'd much prefer if you paid them for their service (added software and distro maintenance). I see nothing there that implies that I am a thief, or even a free loader, if I decide to pay null dollars for their distro. You can view it as either a free project that emphatically asks for donations (which sounds OK), or a paid free-as-in-freedom software project that allows you to get it for free if you don't want to pay (that is also valid, it's like Fedora and Red Hat, except in this case it's the exact same distro, as opposed to "practically the same").
Not saying their site is useful, btw, I had to dig through their blog to even know what ElementaryOS was. But I don't think asking for (optional) payment is the issue there.