Platforms such as Discord allow you or the host (in this case, GM) freely edit and delete posts in the text chat. In order to run a functional text-based tabletop game in Roll20, a delete and edit feature for text chat is necessary. Currently, GMs are forced to use external programs to host text-based games if they want these features, creating an awkward situation where you have Discord for one feature and Roll20 for maps and character sheets. I would prefer to not be forced to use another platform to run games with these chat management features if possible. The 'hide a post' feature, which was recently implemented, is not a delete or edit function, is insufficient, and is and GM-only, making it mostly useless for most instances where a player may wish to delete or modify their text post during synchronous or asynchronous play.