5000 points for buying a donor rank!? OOOO -1, this wouldn't be needed for most if you saved your points after a week or two. Hell, you could even idle among the servers via spectator if you really want points that badly. Or look for someone that'll happily donate points to you.
As Highwon has stated. He does not see purchasing points as an option anytime in the near future. Donators already get discounts in the point shop which, in the long run, saves them points in comparison to non donors.
Won't ever happen. The disparities between donators and normal players are already enough as it is. Giving more points to people for donating will antagonize a lot of the player base basically turn this server into a pay to win server (very small benefits, but nonetheless, still an unfair advantage the donator will have over donators) -1