I have no problem leaving my name, but I also have no problem with people who don't. Sometimes it's not a great idea to give out personal information on a public message board. I can think of at least 2 instances (not involving myself, but people I know personally) where people have used that information with malicious intent. There's always an inherent risk when posting your contact information on a message board.
I agree here with Damon. It is what it is and sometimes its for the best, but I also understand where others are coming from with calling clubs/people out namelessly.