People are just dead wrong about this not helping poker skills. I will describe what skills it will help in a second.
Now, you do risk skewing your poker style terribly if you do not approach this logically, but there is a simple bottom line here.
Poker is poker. Period.
It's just that you will be up against a greater percentage of drooling zombies in playmoney than you will be at say.. 200nl.
So you adjust, and play the game that wins.
There is one style that will win here, and it will win all the way up through the micros, and that is the TAG style. That said I never play a TAG style against this level of player, because it is unfun to me. I play loose/passive preflop and tight aggressive post. If the table lets you limp, then limp. Only attempt to isolate with the giant hands.
But why am I telling you this, you are already winning...
But playmoney is fine for developing many skills that remain useful. Reading flop texture, understanding and calculating pot odds
, and the real money maker at playmoney is in the enormous amount of implied odds situations you will face. It's just these mountain range sized edges will go away when you advance to cash.
Then.. you adjust again.
Poker is poker.