If you had seen my original message the previous poster was referring to, you would see that it begins with:
“A good beta, all of my previously reported bugs were fixed.”
My role as a beta tester is to find as many bugs and imperfections as possible and report them to Apple, so when the final iOS release goes to the general public, it can indeed become “an awesome release once optimised and polished!”. So, the way I see it, I am actually doing my part in helping Apple with optimising and polishing. 😉