When classes are training on a platform, how long are they generally there? 15 minutes? maybe 25? If diving is going to be fun, then everyone has to learn how to get there fast, then take it slow. I don't know anyone involved, but it sounds like maybe the instructor who dropped his class on the other one may be kinda stressed out, and is having a hard time relaxing, so I feel sorry for him. He probably drives to work in major traffic every day, and maybe someone was uptight with him because he was working another Saturday, or maybe there's too much month at the end of the money, or who knows? Hopefully he will find a way to chill a little and set better, more courteous examples for his students. We are so used to having our way and become so demanding sometimes, that we forget not to sweat the small stuff, and to care more about one another.
I don't remember seeing signs about platforms being reserved, only pavillions. Maybe if reserved platforms are the policy, it would be prudent for CSSP to provide instructions to divers who enter the park, such as "stay off the platforms with orange buoys?" And, I agree with Richerso that if you end up at a platform while submerged, it is impossible to tell if it's "reserved" unless they want to mark them so. How about "Adventure Scuba Priority Platform" sign underwater, or something that makes it clear that if AS has classes there, they have first pick for that platform? If someone's on the platform, keep moving? It's only logical.
I planned to take a new & nervous diver to a platform to help him get comfortable a week or so ago, and observed a class waiting in the water for their party to finish getting in the pond. I asked one of the obvious instructors if they were using the platform, and he said yes. So, I just chose another one to take my friend to for practice. I am very glad that noone came to the platform and dropped in on us, so that he was able to relax and not have to worry about being kicked or crowded out. I would think that most people could wait a few minutes and treat each other with courtesy. After all, it's a big pond.