I've had some truly amazing experiences, including the night before my first discovery flight at KPAO when KPAO was miraculously towered in vatsim (it almost never is compared to the major airports in the Bay).
I logged in and started flying the pattern with a very friendly controller. Somehow we ended up with a full pattern which I've never seen at a GA field in the sim.
Eventually we all started chatting, and turns out the controller used to fly out of KPAO IRL, and another local pilot was in the pattern. I got a bunch of great tips on sight maps for the pattern there, airport procedures and best practices, etc.
It sounds cheesy but it was one of those magical Internet moments of connection with other people that sticks with you forever.
Nailed everything during my discovery flight the next day.