Apparently meaning that you can be harassed for bullshit that happened any number of years ago where nobody got hurt so basically no one even realized there was a crime. In a way, the crime was made up later. It wasn't clearly a crime when they were doing it, and nobody would've arrested them for doing it, but later their protest is deemed a crime.

I'm very suspicious of crimes in which the victim is "the people" or some group of people generically. The people don't get to decide on free speech here.