desynthing is improving ones character, they are leveling their craft, that requires completed armor to level, so yes actually it is improving their character. as others have said you can get better gear off the mb then you can get from dungeons, so again glamour trumps first timer here. Repeat dungeon farming for glamour because that s the only place to get the gear vs first time whom can buy better stats off mb or with GC seals. When doing the daily roulette your going to go on the job, that gives you the bonus you want, xp or myth in other words. So they can't always go on their alt to get the gear.