3 points
- You can delete and edit comments on lemmy. But that doesn’t mean all severs or users will honour that request. Same is true for reddit, hence why it is possible to see deleted reddit comments on 3rd party websites. (And deleted tweets, etc. on other sites.)
- People post on lemmy for the purpose of sharing thoughts and ideas with the world. If your stuff is private: don’t post it! This is true for all social media. Also note, lemmy doesn’t ask for your phone number or other unrelated personal information.