People whom get outside and actually examined "suspicious behavior" may be shocked to find normal, harmless people and that it was their own hobgoblins of their minds criminalizing people based on nothing more than their own fears, ignorance and prejudices, probably from watching too much TV and Hollywood movies rather than experiencing the real world.

Nextdoor should create a feedback system to incorporate this effect and help people calibrate. It could also bring in base-rate crime info to help make more accurate assessments of suspicious reports.