A vocal minority of folks here on ScubaBoard do seem to have the fervor of recent religious converts for some equipment or practices, and take every opportunity to promote them. I mostly ignore them.
I fully agree.
I spend some time in just about every configuration possible.
When I am instructing, I use the same gear setup as my students, which is a jacket style BCD with a weight belt.
Whe I am vacation diving/traveling, I wear my old back inflate BCD with a conventional regulator setup, using the integrated weights and trim pockets. I feel very comfortable in it.
When I am technical diving, I use a Backplate and wing, doubles, long hose, (etc.) in a style that would warm the hearts of DIR enthusiasts. GI3 himself would have to look long and hard before finding a reason to curse me out.
I have played around with a wide variety of fins, and I prefer certain kinds. I also know other people who prefer other kinds.
Sometimes I wear a wet suit. Some times I wear a dry suit. It depends on the circumstances.
It all works just fine. Pick out what works for you, enjoy it, and don't worry about others.
I was once diving with someone who had his complete "regulation" gear setup, including a nearly $1,500 canister light, with the battery pack on his right hip and the line stringing over to the lamp in his left hand. I wear roughly the same thing when I am technical diving, but I asked him why he needed it in the dive we were doing then, on that beautiful sunny day in 70 feet of warm, tropical water with about 100 feet of visibility. It seems he didn't have a choice. That was the way he was taught was the correct way to dive, and that was the way, by golly, that he was going to do it.
I think there's more than one way to dive, and I think you can find the way(s) that work for you.