Can we get rid of the requirement that edits have to be at least six characters? Often a post is missing a letter or punctuation and that's all I want to change. I don't want to have to start editing an otherwise very well written post.
Note that it's only suggested edits that have this technical limit. And once you've earned 2000 reputation points, you can edit without suggesting. Here's what Jeff Atwood had to say back in 2011:
As a < 2k rep user, you should make reasonably substantive edits. The approval cost for your edit is not free, as it costs the attention of one or more users who have to look at your edit and think about it. This cost is high for extremely trivial edits.
This will not be changing.
If you want to make single-character trivial edits, earn 2k rep.