A friend entertained the idea of a startup focused on a social dashcam site, where users can upload clips of bad drivers tagged with their license plate number, and smart dashcams can alert to bad drivers in real time. They got as far as asking a lawyer before it fell apart.
Publicly posting the behavior or unaffiliated parties is nothing like the stasi.
Interestingly, the contributors may also be profiling themselves as able to and willing to surveil fellow citizens, should the opportunity arise.
Random unpaid members of the public posting the most outrageous behavior they see is not a surveillance state. The chance that any one incident will be recorded is low.
This page has some more background (and the most amusing map legend I've seen in awhile):