It's a interesting topic, I think
I've been doing this for almost 15 years. Had some breaks here and there but I get that itch and it always sucks me back in LOL.
If I'm being honest, IMHO 95% of these girls are on drugs or being pimped by bf or handler. I've met probably about 3-5 that use the game as way to make ends meet or supplemental income and aren't on drugs. When I find them, I hold on for dear life LOL.
My rule of thumb is if a girl has posted an ad or is a bonafide SW then there's really no need to be hoarding information. If she asks you about other friends to send her way, she's not really discreet so pass the info.
If you actually find a bonafide UTR then that's different. If she's actually discreet and doesn't post then I would be cautious who you pass information to. One, whoever you give information to is a direct reflection of you. If you pass it on here, they are a direct reflection of you and the board. All it takes is one or two bad apples and the new shiny UTR is done with the game and probably you.
Stay safe brothers.