Umm....sharks are one of the most fear predators of the ocean/sea because of their excellent hunting abilities. They can seek out prey and sense a tiny blood drop in the water over 1 mile away. A great white shark can split you in half before you even know what hit you.
If someone dropped a bunch of injured seals in a certain spot in the ocean and a shark came and took advantage, would that make the shark any less of a "real shark"?
Why would a DJ going to a speed dating convention make him any less of a "real DJ"? The state of being a DJ is independent of the situation. It is a thought process, a state of mind, a way of life which both fulfills him and makes him more attractive to women.
A DJ is a DJ period. Going to a speed dating convention does not make him any "less" of a DJ.