I’ve played a game called RuneScape for 5,000 hours and I don’t know why. Was all that time wasted. Was any of this experience valuable?this is really puzzling to me. you don't know why you play? do you know why you watch tv?
there are many possible reasons, and not always reasonable ones, but in general i do know why i play games or watch tv.
to name a few more sensitive ones: boredom, loneliness, escapism.
the question is, do those activites cause you to neglect more important things in an unhealthy manner.
heck, the same can be said for reading and commenting hackernews.
is this discussion important or am i just looking for a some social connection instead of say spending time with my family?
well, it's certainly not important, so i get the same benefit as making progress in a game. it's something i like to do at the end of the day to wind down. (well, more tv and playing games rather than HN)
it serves a purpose that is meaningful and worth it.
recently i discovered that my brother played a game that i like too, so we arranged to play on the same server. suddenly playing this game is not only to relax but also to keep in touch with a family member who lives in another country.
i guess others have different levels of awareness how playing affects them, so i can't generalize or judge. personally i find this awareness important exactly to avoid wondering if that game isn't a waste of time.