Tried skyblock, it was mainly a lot of lame grinding with gambling mechanics to try to get you to spend real money. Moderators are a bit overzealous, as sitting there grinding for too long can get you banned (had mods switching the item in my hand while sitting there breaking blocks, and after I switched it back a couple of times I was banned; I even quickly passed the in-game captcha that makes sure you're really there). There is no ability to appeal or disagree with a moderator's opinion.