I'm an administrator but I cannot edit/remove other peoples' comments?

I can edit another user's task description (in fact weirdly I don't even have to click edit or save, if I accidentally type changes they are saved which is bad).

But I cannot edit or remove comments. It seems I can edit my comments for some limited time and delete them later, but as admin user I surely must be able to delete or edit all comments? What if a developer posts something rude not realising customer can see it? What if they post a link but get it wrong and we want to fix the link?

I want to check this isn't already supported before I just ask for it to be a product request.