Today I encountered an interesting situation. I tend to write with a lot of typos and sometimes use awkward phrasing, which I later edit.
After rewriting an older answer (too bring it up-to-date with my current understanding of subject), I made a lot of mistakes. This resulted in at least 5 different subsequent edits, and triggered "community wiki" mode.
So this is the question-like suggestion, that I got ..
Shouldn't there be a separation between "large edit" and "fixing typos", based on percentage of content, that was changed?
This way, the fixing "a" to "as" would not count as a full edit, and would avoid triggering wiki-mode prematurely.