Unfortunately, you are mistaken about 3.0 mechanics, and you seem to have gotten lost somewhere. A hunter has no real business posting in a PvE-focused priest thread, unless you have a specific question regarding an alt, or theorycraft regarding a raid situation. Mearis was off-topic in referring to the poison cleanse specifically for pvp, and you were trolling in responding to him.
Originally Posted by Mearis
The lack of poison cleansing remains our biggest obstacle. Shamans got curse of tongues removal, paladins got 50% off curses, priests are still stuck with no way to remove viper sting and the worst active mana-regen.
They need to fix shadowfiend and vipersting and then priests are mostly fine.
This is not a valid concern. I'm sure it's annoying not being able to cure poison but each healing class has a similar restriction. Paladins can't cure curses, Druids cannot dispel, Shaman can't dispel defensively. Priests can offensively and defensively dispel 2 spells with 1 GCD, much better than the paladin or shaman equivalents. Although priests may have the worst active mana-regen as you claim (which wouldn't be by much if true) they have the best passive regen.
Complaining about viper sting is a little on the funny side to me after playing a hunter in level 70 arenas against priests and being burned dry within 3 GCDs.