If you have to ask, you are.
I have understood for a long time that the clinical definition of the medical term, "nuts" is this: Being unable to change behavior that interferes with your desired relationships with other people.
But really, aren't we all a bit nuts, each in our own way or ways? When it begins to interfere with happiness, it is a problem that needs a cure. If all it does is make us unique, then it is OK.
I don't get a particular thrill out of dry firing. But if I enjoy doing it in front of others to get a rise out of them, then it ain't the dry firing that is the issue, is it? (Not saying that is the case with you, but the question is appropriate, if only to confirm a negative answer.)
So, I wonder if you do it to irritate others. That is not a "gun nut" problem. The gun is just the tool. The hostility towards those others is the problem.
I do enjoy a fine piece of machinery. Some of my guns as well as an old typewriter I have. That is a wierdness I have, but it has shown no signs of interfering with my relationships.
In an extremely conformist, homogenous society, the range of acceptable vs aberrant behavior is very narrow. Where I live (Alaska) the range is wider than most places. I have no idea how wide the range is in the society you keep, but that will bear directly on the answer to your question.
Dry firing in front of the TV, in front of others who take exception to it is your right, but begs the question that started this thread and my response, "Does it interfere with your ability to form and maintain relationships with others?"
Lost Sheep