I was previously under the impression that "Trusted User" was the highest level of privilege, meaning a 20K users is in all ways equal to a 500K user. My misconception was brought to a halt today when Popular Demand's comment on another question pointed me to a page that outlined a sliding scale for delete votes.
How many times can I vote to delete per day?
At 10k, you can cast 5 delete votes per day. An additional vote is granted per 1000 reputation, to a maximum of 30 delete votes per day at 35k reputation.
It would appear a 35K user has a lot more mana to carry out something on this site than a 20K user. Is there a fuller list of privileges including sliding scales than the privileges page? And what is the absolute minimum rep that would max out privileges on all sliding scales (if there were any other than delete votes).