It looks pretty.

Yes, it looks pretty. Against a competent and competitive opponent you're not going to have time to get all those pawns into those positions. Also, you would be too far behind in development with lots of holes for an opponent to exploit.

i dont know

It only happens when both players waste opportunities.
Nothing good about it if you ask me

yes its a waste of moves and time

but it blocks alot

It only blocks one colour -- your opponent has been good enough to block the other on himself for you.  In addition, as likesforests pointed out, there are a lot of nice holes for your opponent to set up an outpost on.

its stupid