lets do it by political affiliation
republicans have to pay for their own damn rank if they want it
democrats are all entered into a donation pool which is divided evenly and you get your rank for a time equivalent to your share. if you are a democrat, and you want to opt out of the pool, you can do so, but your rank costs triple. if they dont donate at all, theyre banned for one month. this will never be enforced, but it's still technically a rule.
libertarians/anarcho-capitalists since they dont believe in business regulation charge each of them however much you think you can get out of them. charge them 20x as much if you think theyll pay it.
socialists/communists same as democrats but they arent allowed to opt out of the donation pool by paying more.
anarchists/nihilists can donate if they want but you dont have to actually follow thru and give them a rank in return if you dont want to
green party can buy a rank at standard price but they also have to buy a carbon offset credit for the server's electricity use.
moderates/independents/undecided-voters can pick any of the above systems but theyre stuck w/that choice for a predetermined "term limit"