All of these freerolls will start with only 2 players, so in this case the early bird(s) really will catch the worm.
I have see alot of poker sites that use minimum of 4 players for the game to start because with only 2 players to start , the player can cooperate and chop down the prize. Is this allowed here? because chopping down the prize is not allowed usually in another site that is why they make minimum 4 player to start
No, on any tournament that has less than 5 players the prize goes to 1st place only.