[slackwalker]

Interesting. I had a very similar experience.

I had no instagram account, so I set one up to try out threads within the first week of launch. On July 7 I received an email from instagram stating that my account had been suspended for being in violation of community guidelines.

Where my experience differed is that I was able to review and appeal this without entering a mobile number into my instagram account. Very shortly after I submitted a request for review via email, my account was reinstated.