Deak, you are dumb. Windows 8.1 is probably the best OS to date.
On another note, just ordered the parts to my new PC.
http://ca.pcpartpicker.com/p/KMqYwP
You don't lose files and there's certainly no significant glitches (I haven't seen any at all), it's a problem with your particular system. What glitches are you talking about exactly?
I've used 8 (currently 8.1.1) since full release without problem, and it is faster (you can check benchmarks) across the board.
Most people don't have a clue what work goes into a new operating system.