Where have you been the last years? People have been complaining all over the place since SL was replaced. Yes, Mavericks is better than Lion, but all stable? Really not. Things should indeed go back as they where, stability before glamour.
Again, are you getting kernel panics all the time? what do you mean by instability? do you actually mean bugs or instability? how about learning the terms before opening your mouth and spouting off half baked rants about nothing. This place used to actually be an enjoyable website to visit to find out the latest rumours but god damn this place is filled with people who can't even get the basics of computer knowledge hammered down.