As more and more grinds become the content over actual numbers of players diminish and that number of players x$15 per month drops and so does the number of players a $15 for 4 months.
It will eventually get to the point were everyone is going to start going is it worth it .?
All my friends have quit , my server is dead , I have to grind all of this before I can even play what I like in the game.
Grinds are fine when it is for an intrinsic reward but what we are getting are extrinsic grinds that push a behavior of if we don’t we will feel like we will fall behind because our characters are not as powerful like they used to be and the reward for grinding is to get back up to the power level minus the gear ilvl we were by the end of the previous expansion .
Grinding is fine if it is for something you want to get be it a vanity item or even an achievement . Grinding for a good chunk of your non gear passive player powers just so you can do content in what ever the latest xpac is , is not a good grind.