First of all i want to say i love NW and its an amazing game!
But the weapon mastery nerfing makes no sense at all once every second week or so.
Most Mmo’s do balance the game once or twist a year, i know its good you listen to the feedback from the community but there is really no need for nerfing masterys at all.
In the end no one will be able to kill anything the dmg will be to low, and every one will play ranged players.