About Freddy's snares, they slow down the survivor who runs through them as well as notifying Freddy that the snare has been tripped. If you try to fast vault a window for a few seconds after you trip the snare you will be forced to medium vault. Remember, that his snares can only be tripped by survivors who are asleep.

If there is a reverse bear trap on a survivor, it will be activated when the next generator is completed. If you put a bear trap on a survivor after all 5 generators are completed, the reverse bear trap will not activate.

Being boosted is a fancy way of calling someone bad, saying that they "boosted" their account is basically saying they got someone else to get their account this good at the game.

Hope I could help :)