Lost: Thank God it's Finally Over!

Lost is a show that I've never missed over the last six years, despite it disappointing more often than not. Mainly because of how great that first season was, and the hope that all the mysteries would be explained in the finale. Well, they weren't, but I guess it could have had a worse sendoff.
Some thoughts on the finale and the show in general:
Why do we never learn what exactly smoke monster hopes to accomplish by leaving the island, and why will it mean the end of everything?
Jack's not the messiah, he's a very naughty boy.
The island made those folks look old!
I wanna see a show about the adventures of Ben and Hurley.
After the writers insisting way back they wouldn't use the "they were all dead and in limbo" twist, they use it, but in a different way. And why did the reality they created suck for several of them, especially Charlie?
They really were just making it up as they went along.
I enjoyed the finale, was even moved by it in parts, and the series was never less than watchable. But it would have been wrapped up a lot better if the showrunner had been, I don't know, let's say . . . Joss Whedon!
I'll miss Lost, but I'm glad I have one less show to obsessively watch each week.