How do suggested edits work?
When reviewing question or answer edits, I see edits being made with the label of "Proposed by Anonymous". How does an anonymous user make an edit to a question in Stackoverflow?
The same way anyone under 2k rep makes a suggested edit; by clicking on the
Anonymous visitors are allowed to suggest edits on posts that are at least 10 minutes old.
Test test this open any (atleast 10 minutes old) Stack Overflow question in private browsing or incognito window. You will see there
And yes if their suggested edit get approved, that edit is shown as edited by Community ♦ Moderator user.