So, this is a little bit inspired by FYI: nifty new site feature, “fast edit”, and by me noticing a typo in someone else’s post, which I just went ahead and edited.
In Discourse, you can edit your own posts (for up to 24 hours for new site users, for up to 30 days for site regulars), and “Trust Level 4” users can edit any posts.
My proposal here is: I think we should make it cultural expectation that we will advantage of this. This isn’t a mailing list, and we should use the features to our advantage. Edits have a history (except for a tiny “grace period” for small, immediate typo corrections), so there’s not bunch of room for abuse (or any abuse is easily caught and dealt with).
Specifically, definitely feel free to fix your own posts. Don’t go back and change the meaning after someone has replied, because that’s confusing – but fix typos, missing words, grammar errors, and even rephrase or expand if necessary. (This goes double for first posts in a topic where no one has responded yet.)
Second, feel free to fix other people’s posts if you have moderator privs or tl4. Of course, here you should be even more careful about not changing meaning. You shouldn’t re-write or rephrase, but if there’s an obvious misspelling or typo, select it and fix it with the fast-edit feature. This can even extend to fixing markdown formatting or paragraph breaks.
And finally, don’t be surprised if someone makes these small changes to your posts. It’s for the better! If you disagree with an edit, you can revert it. Of course, if it becomes an edit war, or someone is changing things they really shouldn’t, flag for attention.