Criminalizing behavior has its own side-effects that are more problematic than the problem they are meant to solve. What the system would end is inconsistent application and execution of the law, until some one figures out to profit off of it. We have 4 liberal judges in US supreme court who have a tendency to cite laws of other countries in their opinions, so if Americans think they are immune, they should rethink again. As corrosive internet trolling is, wait till Law Enforcement and Criminal Justice system insert themselves as behavior police, they take a corrosive problem and seem to have expertise in making it radioactive.
Inserting of words like "terrorism" into such discussion only makes me feel, this is one more shot across the bow against individual rights.