
Bring back the old system but mix it up with some of the old and some of the new elements of the skill system.
Example:
bring back the specific skill exp per action,
keep the passive exp gain but make it more rewarding to active grind,
balance the required time to master professions,
etc..
I played 2 years ago and i was a miner/jeweler.
I remember it took me only a few weeks to reach lv 95-100 skills
if i grinded and it felt rewarding.
Nowadays i log in play for 15 mins and i have to wait a whole day and nothing to do with my skills to progress.
I dont say make the skill progression 5x faster but if someone plays many hours every day he shouldnt need 2 months to get from lv90 to lv100 in just one skill.
