Everyone can view post change history. Is it bug or feature? IMHO change history is supposed to be viewed by moderators/admis only.
I had that same question today, because when not logged in, there’s an error when trying to view the history.
The decision is that everyone, even when not logged in, should be able to see post history, like on a wiki.
It’s very unusual decision for forum worlds. Nevertheless it’s very interesting idea following wiki standard. But don’t you think it’ll be better make this behavior able to be customized in admin panel for entire forum level?
At least we should have an option in the admin panel.
There already is the
edit_history_visible_to_public site setting which
Allow everyone to see previous versions of an edited post. When disabled, only staff members can view edit history.