Those chains, on the weights, are not to remind Russians of the slave labor camps, so guessing a lot of theft around there. Or their working on the 'increased resistance over distance' training principle, with using the chains.
Lot of strongmen and BB'ers have gotten great results with crude, really basic lifting equipment. A basic BB, DB, chinning & dipping bar, with the correct program, have given minor miracles to a lot of people over the years..
Think there making exercise machines just to be making exercise machines these days. From what I see, anyway. Original Nautilus has been copied many many times, but never matched, because of their patten cam gear.