I have only been doing this for a couple of years, but there are definitely a couple of basic courtesy rules that help us all.
1) BE AWARE...Keep your distance from anyone with a fish on! They will ask for help if they need it!
2) BE AWARE...if you are going to troll in front of someone, move your ass don't just stop and make them avoid you!
3) BE AWARE... and don't troll over other's lines!
4) Pull all of your lines in when approaching others.
5) Brad's rule of distance seems to work well. We should not be able to both throw Irons and have them hit (That can be difficult at times.. but if you are trying to respect the other yakker's out there you will probably succeed in being courteous.
6) Stay away from the Sport Boats... Period.
My $0.02
