Back in Vanilla I played a prot warrior (mostly out of ignorance; I assumed if I had high HP/defence I'd have an easier time questing because I'd die less) and remember people whispering me randomly at all hours asking me to tank this or that. Talking to people who dungeoned more regularly it sounds as though it could be a bit of work to find a tank and healer for any given dungeon run; most people levelled as DPS, and because of the difficulty of holding aggro/managing mana, many people avoided these roles.
With over a decade's worth of alt-rolling and shared knowledge, do you think tanks and healers are going to be much more plentiful on Classic servers? Or are good tanks still going to be able to charge gold for runs, like the old days?