They are not discriminating, it is not upto the DayZRP staff whether there are admin tools and such on SA. Rolle tried to put a whitelist onto to SA for the benefit of the community but unfortunately it has been taken down now (I think) as it is agaisnt the terms of service for owning a server. Also if you are talking about the donate only whitelist application system they currently have, its because they have gotten so many applications that they only want to look at the ones of those who are serious about joining RP and the ones that have the biggest desire join. Do not blame this community for not being able to change standalone, have a problem, talk to Rocket, not DayZRP staff.
I'm serious about joining RP. That's why didn't have any problem with donating and I sent them my money. But now I'm disappointed because I can't fill PID so I can't do my application.