I believe it's more likely that the airsoft community such as the one here is not so much the issue. Conduct on the field will always be a complaining point, but to quote that ad, and I'll just copy and paste from it...
"the guns are obviously clear so that if you live in the beaverton area you can walk around on the street with them and you cant get a ticket.
please call me after 3:30pm
971-732-4615"
Here's the original link...
http://portland.craigslist.org/wsc/for/2400905576.html
This attitude must be educated out of the public at large. I think the people here, young and old, basically get it. It's numbskulls like this guy who have no clue there's an airsoft community that are the problem.
Airsoft needs a good PR department.