I was once considered a hardcore raider. I played a warrior tank in vanilla WoW. The guild in which I was a member was the number 1 guild on my server. However, raiding back then was a lot different than it is now. Hardcore raiding involved 40 people. We spent weeks learning and adapting our playstyles to down a single boss. It took a couple of months to clear Molten Core and Black Wing Lair.