Roll a dwarven priest for the fear ward. Roll a night elf tank for that 1% dodge. Farm that fire resist gear for MC, the nature resist gear for AQ and finally that frost resist gear for the end of Naxx. Fight other guilds for the world bosses (where that nature resist gear you need drops) or farm fucking Maraudon for this shit. Get shoehorned in a class role or find a raid that tolerates that a few of your raiders are dicking around on a feral druid or shadow priest and bring subpar performance to the raid. Be a paladin Blessing of Kings bitch, or a warlock Curse of the Elements cocksleeve for the big dick mages, with added bonus to also be a port bitch. Watch hunters be imbeciles and not bring enough ammo, or when they do it is always the cheap vendor shit. And they refuse to let go of their pet, because that makes it unhappy and they didn't bring food for it. Walk the long walk of shame from the graveyard back to the zone entrance after a wipe because someone was too stupid to walk out of the raid when Garr or Vaelastrasz made them go boom. Or they pulled aggro, because threat meters were a thing back then. When you wish you could strangle half of that 40 man raid, because that half is just filling up the ranks, mostly with girlfriends and wifes, but you need the filler because finding 40 people to raid together at the same time is a logistics nightmare. At most you need a stable core of 10 people who know what they are doing, but 40 show up and demand equal rights to the loot. Except for the four horseman, where you suddenly need 8 geared raid tanks, so you have to steal them from other guilds, because no sane guild geared 8 warriors equally to be tanks.
The more I think about it the more vanilla raiding was a "we didn't know better and it was all we had" nostalgia thing. Call me when they make a Burning Crusade server.