One thing you must remember is that Windows 8 is still currently just in a developer preview release. This is a very early testing phase without all of the features enabled yet, and there still could be more changes made at this point.
I think everyone should take this as it is so far, and wait until the next releases, such as the consumer preview (beta) on Feb. 29th, and the release candidates (RC1 & possibly RC2) to see how Windows 8 develops.
It's just way too early of a stage right now to say Windows 8 is the worst OS when you haven't even seen the final RTM version yet.
Let's just all hold our final judgement until we can see what the finished product is like. Who knows you might like it after all. If not, then there's still good ole Windows 7 to use.