I realise this could have its problems with abusive mods (although Lemmy records when people edit posts), but to me, it has a lot of benefits. Some communities have rules around how posts should look for clarity and/or aesthetic purposes. Sometimes as a mod I see posts that I think are fine, but could just be slightly adjusted to look a bit different or match up with the standards of the community - and I don’t want to be anal and remove it over something small like that - but I would quietly edit it.
Tildes does this with the rationale being that once a post is submitted to a community it belongs to that community. This solves more things than it breaks since you don’t want to participate in a community where mods would abuse this and modlogs are public anyway.
Yeah, I mean if mod edits are public then I don’t know how this could be abused meaningfully without completely discrediting your community.