Yup, but I didn't know that (and when I signed up, it pulled my profile picture from Google, so I didn't think anything of it), and I wasn't given a chance to fix it.

They even sent an email after the ban giving me a "friendly heads up" that my profile pictures has been taken down, and advising me to upload a new one. If I had gotten that email a day before I could have done something about it...

The help article says it can be removed, but it doesn't say anything about the account getting altogether blocked with no warning...