That's the problem with MMO's in general, they have a way to suck you in and it makes the game turn into a chore more then anything and I feel like I am stuck in that state myself. With daily activities and weekly activities, they engineer it to make sure you are pulled into to do those things to make sure you are not missing out on the rewards. This is especially true of the special heroic missions that give way to the exotic quests like the Paradox exotic quest (No Time To Explain) or the Last Rites heroic mission (Black Spindle). They try to find ways to keep you hooked and it can be a hard slump to get out of even if you don't necessarily like the game as much as you used to, especially these days with the numerous issues the OP pointed out.