I can’t comment on specific users, even if I know who they are. If you want to email details to help@inaturalist.org I’d be happy to look into this specific case.
Worried? I don’t think so. Again, this is mostly for retributive cases. I think most people should be warned before they’re suspended for something like this, but sometimes it’s obvious that what’s being done is purely about revenge or sowing chaos.
Today I came across an observation where a user, recently suspended, still had active DQA votes. It seems like if altering the DQA is an offense that could cause suspension, you would want suspension to trigger vote removal.