When I post I usually hang around in chat after and then make any corrections that are brought to my attention.
Personally, posting in meta first doesn't appeal to me that much, but I will happily take any corrections on content or grammar in comments on the blog, here, or in the Server Fault Comms chat room.
Just keep in mind that if you take it to the extent of http://english.stackexchange.com/questions/2153/should-kyle-be-corrected-and-if-he-doesnt-why I will just get confused :-P