Currently each site has it's own reputation rating which shows either expertise or trust in a particular user. This rating is useful for a number of things first of all it gives a number of rights to users second of all it allows us to place bounties and thirdly it shows an "expertise" number of how good a particular user is in a particular subject.
The fact that each site offers it's own reputation does however have some consequences:
- I'm unable to offer bounties on different sites, I have quite a bit of reputation built up on Game Dev however I often find myself with problems on Stack Overflow, this means that I cannot use my hard earned reputation on Game Dev to help me resolve my problems (they would be off topic there).
- Reputation represents trust, currently many privileges are bound to your level of reputation, this mean that a user can be trusted with full moderator rights on one site yet only have 101 reputation on another not even allowing him to review users first posts.
The solution:
make a single global tracker of all reputation displayed besides the current reputation meter on each site, this global reputation can be used as an alternative supply of reputation for bounties at a lower exchange rate (say 2 reputation for each point offered in bounty and can be used to unlock a number of privileges (but not all)). This would mean that a user who is very well known and in high regards on one website can actually do more then a user who spend a single afternoon on a particular website.