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I think internet is a better space for meeting people.
You have no idea who you’re “meeting” online. F2F isn’t perfectly safe, but connecting with people you know, or who are at least known by people you know, is far better than some rando online. Even then, you need to learn to compartmentalize and operate on a need-to-know basis. If you want your group to be infiltrated, at least make them work for it. I wouldn’t enter into a financial transaction with someone who approached me on the internet, so why would I bet my freedom or even my life on such a person?
There is an infosec guy in California who had NULL as his car license plate. If a license-plate reader detects a ticketable event but the license plate is unreadable, guess how the system handles those events?
Infosec guy was not a happy bunny.