I don't see a lot of repeat fatties at my gym. Just one female sphere that's there irregularly on the elliptical. Works out for half an hour or so, and is moving for sure (not sure the difficulty level). Been going on nearly 1 year, still looks exactly the same. No change. On the other hand, the other non-slim non-fit regular (a dadbod) started around the same time as me, got into weightlifting and is rather swole now. Sometimes, someone shows up for a couple of months, gets some results, then disappears. Wonder what those look like now, but I can guess. That seems to be the gym dynamic. A few regulars who get results, and a bunch of amateurs who pay their memberships, show up to swing their limbs around with no purpose, plan or goals, never to be seen again.