Freerolls like this I will sometimes open and make the window size really small. Then I just fold everything except AA and KK and don't really pay any attention. If you get lucky a couple times you can amass some chips and wait for people to start getting serious. In the second hour it may actually start resembling a real tournament. That being said even then most of the large stacks at that point will have gotten their chips by making crazy moves so the bad beats will still be plentiful. Largely these are a waste of time.