I definitely play WOW semi-hardcore most of the time with the occasional short break. Loved the most recent expansion and there's hardly been a day I don't log in a bit since launch. We're at the weird time between expansions where lots of people take breaks so I have to work on casual things like old achievement hunting since most of my guild isn't on to do mythic raids. There's a pretty good grouping tool these days though that makes most things "easier" to get with time and patience.
There's a number of social things on these for sure, but at the moment I do spend quite a bit of my WOW time leveling an alt or working on solo activities. Things will kick back up group\raid wise with my regulars in August when BfA launches.