It is, they're called volunteer divers. And their numbers are made up of very diverse backgrounds.
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So, I hope we will get some responses here. If you know of legitimate opportunities, please list them here and describe them as you know them. Be prepared for some discussion. For example, if you list something that someone else thinks is a scam, that will need to be discussed.
Folks, let's remember that the purpose of this project is to define categories in a meaningful way so that one can tell the difference. The point is to be able to categorize something. It will be meaningless if we define two categories: 1) true science and 2) things that are not worthy to spit upon.
I consider the cards are really just bragging rights and an extra way for AAUS to collect a small fee...