The only places with preemptive policing are totalitarian governments where individuals have little to no freedoms.
What if
it looks like a duck, swims like a duck, and quacks like a duck?
I've tagged many accounts
like this one. They spam their scam because people keep falling for it. Do you agree on tagging those before a victim complains about this particular user and website? One could argue it's an innocent new account that truely "provides a unique opportunity", but I've been around long enough to go with the duck approach.