Not entirely true ^ I will address each one numbered in chronological order
1) Like it, will look into it. No, its not the same idea as prestige. Prestige will not give you the option to reset stats or not, if you prestige stats will be reset but its not quite the same idea as achievements in order to achieve a completionist cape, and I like both integrated into servers. Will also make some of the achievements require you to do a small bit of everything (10 plays of every minigame minimum. 5 wins of every minigame minimum. 15 killstreak in pvp minimum. Etc, etc.)
2) Yes, they do drain too fast IN PVP, but I'm not sure if you meant due to smite, or generally they go down too fast when prayers are on. Clarify please.
3) Well it just makes it more difficult then for now right?
Killcounts weren't built to be easy, and soon will make it so that Donators (and..possibly vets or respected players) don't need a kill count, or only need half the kill count usually required.
4) Too open of a request. I'd need Specific doors that you need because i'm not making every single doors moveplayer line would just slow down processing speed and cause un-neccisary lagg
5) Never been a fan of encouraging people to afk online personally. this goes the same for encouraging people through points from simply killing monsters. Also, hopefully the prestige system will encourage old players to do stuff and stick around anyway
(and also so will no.1 request you made if we do this)