Hi DaDegano,
It is a good idea of having such a post to track down the demands from the players in order to make the game balance or more interested.
You have the support
Unfortunately, I have different opinion on some of the items in the list you have, hope you don't mind I voice it out here.
For changing/modifying/increasing/reducing a particular character's ability:
Speaking as a player from MYKO(unless I remember it incorrectly, it has been more than 15yrs i guess),
I was using warrior that time, and it isn't the most powerful char when the level cap is at level60,
Assassin was the almighty char to play with, everyone faught for that,
after certain period of time, when level 70 is unlocked, warrior became most powerful char to play with,
then everyone again started to train up a warrior.
what I am trying to say is, this is how the game evolves, it has its own trend to grow,
a way for the game company to earn profit from this game,
otherwise everyone will get board when they hitted max level and have 100billion nps and everything stay the same for 10yrs.
I believe we don't have to purposely go and modify game in order to balance it up, I am speaking as a weak warrior.