I frequently justify long and complex changes in a single diff to ease reviewing
them, and I find that the current limit of a few hundred characters (or whatever
the exact count is) is too low, and I am forced to resort to awkward
abbreviations and runningwordstogether. ex.
I can't think of any downsides to lengthening the max character count except
perhaps the buffer being filled up with garbage/copyvios/offensive material, but
as the current length allows for that, and we've already seen some abuse where
anons added in privacy-violating material, I do not think this will enable many