I have not PMed anyone and left my first review today. I think leaving some to just "find out on their own" is not really very fair or right. The point of this is to share information and help avoid pitfalls and pratfalls. By helping each other, we keep each other safe and the girls/opportunities safe.
If someone is annoying, then block them. If they're just asking for basic or legit info, share up to where you're comfortable. If they're asking for too much, just don't respond or block.
In the end, if you're a regular and long time poster, you're probably going to be annoyed and pissed off. I am sure I would be, up to a point. Otherwise, I'd say find a way to help accommodate newbies. I had to lurk for a long time on other sites to figure out how to navigate even in a reasonable fashion.