Yesterday I ran across an answer where the author uploaded an image to Stack Exchange's Imgur, but provided a link to it in their answer instead of embedding it. That's a pretty simple markdown change, so I did that.
Since I'm under 2k rep, I'm limited to making edits that meet the character limit. Accordingly, I worked around the system :) with a little markdown hack.
On other sites where I have more rep, when I see edits like this come through the suggested edit queue, I "improve edit" and remove the hack - the user is doing a useful thing and is just crippled by the system. However, in this case my edit was "reject and edit"ed, and the hack removed.
On Server Fault, then, should I avoid making this sort of edit suggestion until I have 2k rep?
Related: Any way around this: “Edits must be at least 6 characters; is there something else to improve in this post?”, which encourages the use of hacks to get around the edit character limitation.