I understand the attitude towards people that take fish illegally. You kind of get tired of saying over and over again "Uh, you weren't supposed to take those fish like that."
I don't think a condescending attitude is going to educate people though. A condescending attitude will do little but put people on edge and cause them to ignore the valid parts of the post.
It's understandable that some people may not realize it's illegal to take sunfish by net. After all, they are everywhere, what's wrong with netting a few of them? Or, some people may misinterpret the regulations, as was demonstrated within this thread. Open season and no length limit doesn't mean you can use any method of capture, it only means you can use legal methods of capture (in this case, hook and line for bluegill) to catch and keep any size fish of that species. The Mass. regulations state that only bait fish can be captured by net, and the list of baitfish is here:
http://www.mass.gov/dfwele/dfw/regulations/cmr/cmr_400.htm
In (8)(a) of the first section. The only sunfish listed is pumpkinseed.
As far as those people taking obvious game fish such as largemouth bass by net and such, yeah, it's obvious to most of us that those shouldn't be taken that way, but maybe some people don't get it. *shrug*
To those of you that keep catching fish illegally and know that you are, just keep in mind, if a fish and game agent catches you they're probably not going to just say "oh well, don't worry about it". I'll be honest, if you get caught catching a few bluegill they may just give you a warning, but if you get caught netting large game fish such as largemouth bass, smallmouth bass, trout, etc., they are going to fine you, and depending on that state it may be a large fine, depending on the fish you may even lose your fishing license, in some cases they may even be able to confiscate your equipment.