Don't feel bad, it just means you're not old :D
I played Diablo in college, by the time WOW came out I was a young adult with plenty of time on my hands.
My roommate probably invented griefing, cause in the original Diablo you could kill any player at any time, take their loot and leave the server. We might have had some great memes if screen recording and YouTube had been a thing. Like the time my roommate accidentally equipped a battle axe to his chest instead of armor, and was stuck there dead in the game and no one could resurrect him.