Being a free-roller once again, after a two year break from the tables, I see many people implementing that strategy. I guess the concept is to get lucky and amass a big stack early on, in order to play loosely and dominate the table you are in. If it works, great. If not, no loss.
In my opinion, it's just a slacker's approach to the game. No thinking, no sizing, no wondering what the opponent might hold.
Definitely no way to improve your game.
Keep in mind that many players think " it's free, so what if I lose" and might call you with anything and suck out as well.
Good luck with your experiment, but if you are serious on freerolling, please, reconsider.
As a reference
this is my early thread on the subject from some ten years ago.