We used to fix errors and improve formatting for a big portion of what is getting posted in our forum.
However, we started to receive complains: people don’t like when their grammar is fixed. So we stopped fixing formatting and grammar issues for now and would like to change the tactics:
Fix errors in messages not earlier than in 1 month after they are created.
Do not leave any traces.
It would be good to have a tickbox shown to admins/mods “Don’t record this edit”. In our case, it only makes people angry and disappointed. Some of them are 55+ years old and they feel not so nice when a young person corrects their speech. Yet we believe a better formatting and grammar makes the forum a bit more good-looking and clean in the eyes of newcomers and people who care.