Not even nostalgia could get me to play it. Just think about what running five man instances was like in vanilla. Find a group in chat. Run to the instance (which can take like half an hour if you're far away). Wait another half hour for everyone else to get there. Enter the instance, wipe on the first pack, and the group disbands. That's an hour+ of "playing" a game where you accomplished exactly nothing.

I disagree, or at least my experience on private servers hasn't been this. Putting a group together in chat and getting everyone to the instance takes time and work yes, but that generally means you don't bail at the first wipe.

It might not work that way with new players coming in to classic, but making it trivially easy to group and port to an instance has its own problems.

I get this entirely and I was the same. Hopefully, being older and wiser with more commitments I will attempt to get back into the game and try to enjoy it in a moderate and sociable way and not in an isolated gamer way. Unlike the days of skipping homework and sleep to grind out that next level or that next piece of blue gear.