Marks are going to kill the game. People are literally only doing marks day after day and all day, once their gear is fully upgraded etc.. they will not only have nothing to achieve, but they will also have burned themself out to the point there is no joy in playing. Seriously, I've seen things like this on so many games... that it upsets me that SE is actually let it happen to this.
This is the downfall of FFXIV. It has been nothing but going up since launch.. and it makes me sad.