mods, sometimes we notice that we made grammatical or spelling mistakes and would want to edit it but edit is not available.
Agreed. We were having problems with severely inappropriate screen names being visible while waiting for approval on posts and had to deny visibility. This unfortunately prevents edits. The only two options is to catch the edit button on your post for the first 10 or so minutes after it is approved, or to do as you have been doing, to post your corrections and when possible we fix it for you.