If you are finding a GitHub alternative, GitLab is a strong contender. There's also Gitea and Codeberg (If you don't want to self-host Gitea) if you like a GItHub-inspired interface. Sourcehut is also a good choice, though the plaintext email workflow is something that you will have to get used to.
For further actions, you may consider blocking this person and/or reporting abuse
We're a place where coders share, stay up-to-date and grow their careers.
If you are finding a GitHub alternative, GitLab is a strong contender. There's also Gitea and Codeberg (If you don't want to self-host Gitea) if you like a GItHub-inspired interface. Sourcehut is also a good choice, though the plaintext email workflow is something that you will have to get used to.