freerolls can teach people bad habits like going all in several times to "build a stack". Learning to bet properly and make smart decisions gets lost sometimes due to people going all in with ace rag the whole tourney.
I think it was the storm that I played a few years back, people were still flooding the tables with all ins to about the last quarter of entrants. There were so many people playing it i didnt think id get anywhere butbyeah. It wouldn't matter where you go, those things still happen. Maybe the higher entries, I'm not sure... Never been there to even see if that's my preferred game, but yeah.
There are books that suggest it too in order to build the stack. In those hyper turbo games it looks like the norm too due to the blinds and antes rising once or twice per orbit... Different strategy I guess, but maybe not. Maybe its the rebuy factor that changes things in those games.
But habits can be broken. After my long absence from poker I'm trying to get back into it and I'm definitely unlearning many things from my previous sessions and using the free rolls to do it. Who knows, maybe I get some where this time around.