I am obviously not a lawyer but I don’t see how Reddit is in the wrong here. On GDPR.EU that “The EU’s GDPR only applies to personal data, which is any piece of information that relates to an identifiable person. It’s crucial for any business with EU consumers to understand this concept for GDPR compliance.” I don’t see how your comment history would be considered “personal data”.

It even says in Reddit’s TOS that “When Your Content is created with or submitted to the Services, you grant us a worldwide, royalty-free, perpetual, irrevocable, non-exclusive, transferable, and sublicensable license to use, copy, modify, adapt, prepare derivative works of, distribute, store, perform, and display Your Content and any name, username, voice, or likeness provided in connection with Your Content in all media formats and channels now known or later developed anywhere in the world”.

You’ve agreed that your posts are no longer your “personal data” at that point…

The best employees are the ones who would do anything to stay ‘employed’ even when you don’t pay them.