It's 100% an issue with the people with submitting these PRs. So, if someone has a history of having no issue with breaking project rules (let alone being arrogant about it), it should be a massive red flag about the person for any possible employer or future collaborator checking their profile, etc.
Why people are wilfully destroying their own reputation like that is beyond me. It's infinitely better to have no activity at all on your profile than to create a track record of bad behaviour.