I'll agree with a few of the recent posters who have mentioned that selfishness plays a role in the SBing debate. Nothing inherently wrong with having a favorite stream, and wanting to keep it all to yourself, but let's call it like it is. Protecting the resource is not the issue at heart...guys get pissed when other anglers show up on "their" stream, for whatever reason. Keep in mind though, unless you're the landowner of the property through which the stream flows...there's not a whole lot you can do about it. If it's open to fishing, or on public land, other people can fish it...tough rocks. As far as protecting the resource goes, I'd agree, more knowledge and exposure is probably better, so I don't buy that one.
Any of us who fish a decent amount in this state realize that nearly all streams, even the tiny ones, get fished at some point. I was way up in the headwaters of a tiny trickle this Fall and I found a fly stuck in an overhanging branch...size 14 or so parachute Adams...Sal was it yours? ;-)
Most of us at one point or another have probably had a stream crop up by name on here that we wish didn't. It happens, no big deal, and certainly no reason to belittle the guy that posted it. The bottom line is the sum of knowledge we stand to gain by allowing unattacked stream reporting far exceeds the net risk in having one of your personal favorites named on occasion.
There are plenty of trout streams in this state...if you drive up to "your" stream and there's a car already there...do what I do...go to one of "your" other streams, catch some fish, and don't worry about it. You'll get to fish "your" other stream again sometime soon.