Given one of the most common duplicate posts on the current Meta Stack Overflow deals with "Why can't I ask questions" (or to a lesser extent, "why can't I post answers"), I am curious about how the upcoming MSO/MSE split will change the user experience for post banned users.
Currently, post banned users can post on Meta Stack Overflow since it is the defacto Meta Stack Exchange and has no minimum rep requirement. But how does it work with a true per-site meta? Does the post ban extend to the per-site meta as well, or can users ask about their ban and get support on that meta (assuming they meet the minimum rep requirements of a per-site meta)? What about users who don't meet that minimum rep?
In most cases, the users asking these questions are not worthy of a lot of attention or feedback (nor do the want it, they are usually just ranting about being banned and demanding we release it), but occasionally, you do encounter a user who seems to have a desire for real feedback and you want to provide some support.
A secondary question is what support should we be providing? Are questions about the post-ban for a specific site going to be on-topic for MSE, or should we be sending them to the new MSO (or appropriate per-site meta) to get feedback on their posts?