Thanks for responding. Yeah, the third link is not necessary. And while they might not check their PMs immediately, when they do, they'll know that someone cared enough to send them one. I know I would have been happy if someone had sent me one.
As for multiple people sending messages, the more the better! As long as they are different. Like, I could send them a message saying where to introduce themselves, and CR could send one saying what info to post in posts about their problems. Just an idea. Or, if you are going to send a PM to someone, post here to say that you will handle it. Then, the members of OCHWelC (do you have an opinion on that?) will know whether or not to PM by checking here. How about those ideas?
Keep welcoming!