- Those that apply primarily to the specific specific site in question (such as whether whether a specific question should be be closed)
- Those that apply to the stack overflow internet services, inc Stack Exchange engine (such as bug reports, feature feature requests, etc.)
Further, there are several levels of user engagement and abilities. Once one has sufficient rep in any one community, they are given 100 repreputation in other communities, which gives them all the basics, except for downvoting. It only takes another 25 rep (5 question upvotes, or 22.5 answerpost upvotes) to increase one's rep enough to get the ability to downvote.
If metaMeta.SE were solelysolely hosting questions of type 1 above, then I'd have no objection to using some sort of calculation to allow advanced moderating equivalent to some function of the person's rep on stackoverflowthe main Q&A sites.
However, I believe there is some value in treating metaMeta.soSE as a separate community with a niche. Yes, it servicesdoes serve questions of type 1 to a small degree, but its community primarilyprimarily serves and deals with questions of type 2. In effect, it is just as much a separate community as stackoverflow, serverfault, superuser, and the multitude of area51 spawned communityother Q&A sites.
In other words, it has a particular niche audience of experts who have worked with stackoverflowStack Exchange to some depth and for some period of time, not just as users, but as long-term contributors to the overall direction of the engine development. It's essentially a Q&A site, whose subject happens to be Stack Exchange.
For this reason, there is value in treating it as a separate community with its own, separate reputation system based on questions and answers contained inside metait - and not based on questions and answers dealt with in other sites.
The 100 rep bonus given just by having some experience with some other stack relatedStack Exchange site is enough to get most people most of the access they need. The ability to downvote, tag, close (The reputation requirement for downvoting is also reduced on this site, and delete questionsso the bonus will also grant that here.) Higher privileges beyond that should be earned, just as they should be earned if moving from stackoverflowStack Overflow with a 20k rep to a user interfacenon-tech site.
It doesn't take much community engagement to get that last bit of rep neededIf one wants to downvoteattain more privileges than those, and simply answering one or two questions a day on here will yield enough reputation to attain whatever level one wants.
I'm not convinced that having 20k reputation on, for instance, the electronicsElectrical Engineering site should give one the ability to vote to close questions here, or even to downvote, without at least engaging with the existing meta community for a short period of time. But it alreadydoes gives the abilitybasic abilities to ask questions, answer questions, comment, flag, upvotevote, and edit community wiki posts.
And as useful as voting, tagging, editing, closing, and deleting are, the best way to help move the community in any particular direction is using words - so the first and foremost feature, that of asking and answering questions, is always available.
tldr;tl;dr:
It's a niche site, just like SOStack Overflow, SFSuper User, SUServer Fault, etc. While it's called "meta.so""Meta", the reality is that it is a community of experts (not just users, but experts and wallowers in the mud) in one niche, and the reputation system is and should be separate from the other sites, especially given that the 100 rep bonus for account association provides nearly everything one needs anyway.