'crime', 'illegal', etc, are rhetorical escalations you brought into this. Twitter suspends accounts that violate its policy against "intimate photos or videos of someone that were produced or distributed without their consent". The policy includes content that appears to be that but might not be, content posted inadvertently or with the intent to report, etc. There's no mention of crime and of course, there's no easy way to know whether a particular post would actually be criminal and in what jurisdictions. Those are things you just declared, Twitter doesn't.
That’s a lot of words spinning a factual event into a “rhetorical escalation.” The fact is plain and simple, Twitter accused the author of posting revenge porn. Posting revenge porn is, despite your objections, considered a crime. Therefore, Twitter accused the author of a crime.
