LONG Time online players get hosed no rakeback

Ive played online poker for 12 years if not longer,I never heard of rakeback back then.When i finally do hear of rakeback being a long time loyal customer of absolute poker,jetset poker before it closed party poker ,ultimate bet ,SIgned up for fulltilt before it had a site,signed up for bodog,pacific poker,pokerstars,doyles room,You name it ive played just about all of em and still play on about 5 different ones.I get no rakeback because i was probably signed up before rakeback even existed.Thats unacceptable,I feel cheated.So a person just starting out online gets more priveledges and perks than someone whos deposited money hundreds of times on these sites.Its wrong rakeback should count for everybody.