Many highly informative discussions happen in the per-market comment sections. However sometimes a user leaves a comment that they think better of later, and wish to remove.

Will Manifold fix this problem by adding the ability to delete previously-posted comments? This market will resolve to YES if a button or other interface change makes it possible to delete your own comments by the end of September 2023.

It still counts as a deletion even if some trace is left saying e.g. "[this comment was removed]"

You must be able to delete your own comments on any market they're posted on, therefore the current "Hide Comment" button doesn't count because it can only be used on markets that you yourself created.