I don't see any reason to attribute that to the submitter, though they may need a lesson in how much moderation work it is to host user-generated content.
User-contributed content, and a site operator who either endorsed these beliefs and/or believes in unmoderated free speech and/or is altogether unaware. Seems likely they’re aware, since they’re the submitter of the post, but @aehtyb, FYI if not!
I don't see any reason to attribute that to the submitter, though they may need a lesson in how much moderation work it is to host user-generated content.