Similar to Reddit, have a label of sorts next to the original creator's name that shows that they are in fact the original creator. This can either be static, or the label can appear once your cursor is hovering over their name. I would recommend the formal, since the latter isn't very mobile user-friendly. This addition to the site can be a nice QoL change, and can save a little time of having to scroll all the way up to find out if that was actually the OC that replied to a comment or not. Thank you.