Most of the people on here don't even seem to know how to boil water*, so I would be surprised if the majority were regular fishers for food or sport. Only way to get an idea is to start a poll, but that still wouldn't give an accurate idea, since polls aren't usually answered by a large enough fraction of the membership to have any real meaning. I don't think a one-off experience that makes a person unhappy enough that they will never do it again counts a person as being a hunter or a fisher though. "Ever caught a fish" doesn't make you a fisher.
I for one did used to spend hours lying on boat docks catching glass shrimp in cups so I could look at them, when I was a child. I never removed them from the water though. I just wanted to say "hi". And we used to go to Pine Lake in San Francisco with bamboo poles with string attached, and wadded up bread balls tied to the ends, to catch crawdads. They would pinch them with their claws and we would pull them out and put them in a bucket for a while, so we could see them. We used to dig up tiny crabs from the mud too, for the same reason. That's the extent of my own experience "fishing".
*Mostly teasing, but I have been surprised at how many people on here rely on pre-packaged microwaveable meals and eating out.