I (<2000 rep) wanted to edit a question, mainly to rephrase the title and to edit the tags. Since I was dealing with the question already, I fixed a few minor things in the question body (e.g. typos, spaces, punctuation). Because these things added up to fewer than 6 characters, the edit couldn't be submitted, even though I made substantial edits to title and tags:
Oops! Your edit couldn't be submitted because:
- Edits must be at least 6 characters; is there something else to improve in this post?
Once I went back and only edited the title and the tags, it was possible to submit the edit.
I understand the 6-character-limit is supposed to prevent the question from unnecessarily being pushed up in the list of questions and probably to avoid keeping the 10k+ users and mods busy with approving nit-pick edits. However, since this will happen anyway, I think the 6-character-limit should be suspended if the title or the tags are edited as well.
(I don't know if there's a 6-character-limit for edits within the title as well.)
P.S.: Concerning the above-quoted error message: I think is there anything else would be more appropriate than is there something else. Perhaps a native speaker opinion on this one? Afaik, something implies the expectation that there actually is something else, as opposed to anything, which leaves room for either outcome.