1) Probably Apple's fault. Does it work on a real mac?
2) You need a different smbios, either way, this really doesnt affect your performance at all
3) Theres a fix for this:
http://tinyurl.com/qjv67v
4) Doesnt sound like an OS X issue. The OS doesnt have anything to do with POST.
5) I dont use screen sharing so i cant help you.
6) Probably your tv/cable setup. This wouldnt be OSX's fault.
7) Apple already knows its a hack. Every time it checks for an update it sends Apple a hardware config list.
8) Any OS can crash at any time on any piece of hardware. You are really trying hard to find reasons to complain, eh?
9) Once again, google can fix this, but i'll save you 3 seconds
OpenHlatRestart
10) This is valid, but if your install isnt broken why bother updating?
11) Aesthetics, but i understand. Either way, i assume its not affecting your workflow.
12) Who cares if it "feels" like a mac? What does a mac "feel" like? I jump from my hac to real Macs and dont even notice the difference.
13) Once again, have you googled the issue? You probably could have fixed all your issues in the time it took to type up this list.
14) i7's dont work on hacs yet (that i am aware of), so if you really need i7 for some reason go spend $2500 on it, i'll be happy waiting a month or two so i can spend $1000 on mine which will probably have better performance.
15) What settings? ACHI? Is it really
that difficult to change some settings once?
16) What video card do you have? You probably just need proper drivers which (unsurprisingly) can be found in about 3 seconds with Google.
17) Excuse me while i write up a comprehensive guide detailing every single piece of hardware ever made.

Or! You could try putting a little effort into this yourself in stead of whining about it.