There's actually quite a lot of similar complaint topics about problems that do not exist. I think people should play the game to verify their information first before making a complaint. There's no need to get upset about rumors or, in this case outdated information that was dug up somewhere.

The cap for desynth skills was 110 before the expansion, but it's 180 right now. I have one of mine over 170 so far, it gets a favorable chance at desynthing i160 dungeon drops. Furthermore, next week's patch is increasing the skill gains from desynthesis so it's not so slow to level. I recommend everyone to always read the patch notes so you're aware of the latest adjustments.