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Well, hang on a second. I haven't used Steam in about 2 months now just as I'm studying, so maybe I'm missing some recent development, but Steam has worked for me near flawlessly on various Linux distros, from Ubuntu to Arch to openSUSE.
I'd say take a step back, I presume you're on Linux, and just make sure this isn't something your own PC that's causing Steam not to work. Checking logs and whatnot to at least begin with, checking how it's installed and if installing it in a different manner fixes it, basic troubleshooting steps.
Maybe Steam is absolutely borked, but usually, the way I see it is that realistically, if Steam works on popular distros like Ubuntu (which I imagine is the main one they would check against as well as whatever SteamOS is based on), then it's actually something wrong with my setup, and it's on me to fix or workaround. If its clearly something wrong with Steam, lodge a bug report. If they don't respond to you then I think sure you're justified to say they don't want your money.
Until then I don't think it's entirely fair to seemingly come out of nowhere, and instead of doing what most other people do and say "Hey, Steam's crashing and unusable, here's the info I have, help?" you look like you're just accusing Valve of not supporting your likely niche distro on your specific hardware.
Maybe I'm wrong about all the assumptions I'm making here but you're not exactly giving a lot of info here, and to me this just looks like an unproductive bitchfest about a program, and I think that's why people are down voting your post.
