anyone who complains about a lack of crystals is simply stupid, lazy and totally lacking in anything like discipline. Even new players, if they've been on the game a week have a lvl 90 job. They can solo/low-man all the way to sky access in less than a week after that. 1 hour in sky on the elemental islands will have your inventory full, without TH. Assuming you have 16 slots filled with gear that will give you between 144 and 768 synths.

And if getting to sky seems like too much work? take a level 1 mule out and level it up, that'll get you anything except light, dark and ice crystals in plenty.