Oh it is a thing. Sadly. Anyone who reads the security blogs it has been a thing for way too long a time. The problem is the people calling it in are in other jurisdictions (countries even) and it makes it a major PITA to track down and prosecute.
There was an article here on BB actually about a family ruined because the trollies were after one of the kids. Multiple swattings, fire department calls, etc. They lost their jobs, got divorced…
ETA