Compared to other games, blockland is really a rather simple game. The main addition/pros of this game is the addon/mod support, almost every single part of the game is moddable, that's really it, at least in my perspective.
Yes.
Yes, it is.
So why are you using that crap?
I don't think you have learned at all, once again, just because one thing doesn't work doesn't mean you just scrap/trash it out unless its something that you need heavily on a day to day basis, then go ahead. That's like saying you are going to switch to OS X just because Audacity doesn't work well with your current OS.