There is absolutely no reason to believe there was another Single user getting this treatment before. The Elon-case was just copy & pasted as an ego-stroking hack.
No. Not a chance. Elon’s claims of mismanagement at Twitter have merit, though not nearly as much as he think, but the one thing that’s undeniable is that the previous “owner” (well, the CEO), is an adult that didn’t care about this shit.