Jothar, you are not alerting people to dangers. You are sloppily creating loshon hora and dan lekaf zcheus issues for all of us by not handling your suspicions behind the scenes with email warnings or waiting for a real problem.
You can not run amok among everyone in the name of good hoping to find someone doing wrong while stepping on the toes of good people.
Specific cases in point: 1. You posted asking people what time they daven. 2. You asked for information, in the name of alumni, on how to effectively track people.
My point is this: I have seen more than one person post less “mining” points and you vigorously confronted them in public in their threads in an accusatory way, which you mistakenly thought was preventative.
That is not ok with me and you are bringing all of us in to loshon hora and dan lekaf zcheus issues by confronting things impuslively. Yes, impulsively. You were wrong in all those cases of posters you confronted. They were not criminals. But you hide behind a good cause and move your merry way and get away with it.
Internet security concerns are not unique to you, even if you want to be the poster child. We want internet security, but what you are doing is making people afraid and offending innocents in the process. How is that a just way to handle things?