Tanking services

That’s correct, but tanks are rare and there’s a market for them. Therefore a tanks time is valuable, much more so than a healers like myself, and especially a DPS.
We actually need more tanks on the market so more dungeons can be completed, so more players have the chance to get what they need. If payment gets them in there, then that’s great for the community.
It’s why I’m here right now defending the topic though I make no profit off of this myself.

Because the moment you find an ungeared tank, cool. Now the next group over is going to have to try and find a tank, but that tank is with you guys. So now they’ve got to hope another is either finishing the dungeon, or logging in. Because you were already spamming for a tank for 30 min’ with no takers, meaning there’s none running right now… See the problem with that?