[Cont...]
You seem pretty confident in your ability to tank. You've even said it yourself right? That you're capably of keeping yourself alive even if the healer dies. With that in mind, i see no reason why you shouldn't be doing wtw pulls by default regardless of healer skill level since this is the mindset you already have. Clearly, you can, so why aren't you?
You even said in a later post that you dictate the competence of your team through the first pull. What does going slow accomplish? Much like negotiation, you start high and make your way down. Failing will eventually happen and you work around it.
I've always hated this argument. Tanks do not set the pace and the reason you guys don't understand is because you only see it from a slow tank's perspective. What about an elitist tank who expects competence from all players, even the new healer. He goes and pulls everything and inevitable die because the healer couldn't keep up. Or maybe the 2 DPS aren't doing their aoe rotations correctly and aren't killing the adds fast enough and burns out the healer MP. Tank has to slow down the run because of these players. Did the tank have full control the pace of the run? No, the team decides the pace of the run.
If you are deliberately slowing down the speed of the run you are arguably just as bad as those "forcing" you to pull more. But i digress.
Am I condoning the action of the healers pulling tanks into mobs? No. Do i think Rescue need to be removed for this sole reason? No. OP also pointed out that this happens a lot to newer tank and I ask, what did you do to help the situation? Did you tell the healer to stop? Or rather, did you try to help the tank understand his abilities/cooldown rotation to help him in later dungeons where wtw is expected? If you just left the dungeon without saying anything you're just as bad as the people you're complaining about.