I've seen worse................30 years ago.
My memory is terrible so I can easily be wrong. But as I remember, 30 (+/-) was when Summit hit the market and changed hunting and safe stands. Before that was Amacker. Before that was Baker. Before that was cotton spindles and a 2x4 built stand. Before that was 2x4 nailed to the side of trees and a 2x4 built stand. I hunted and survived through them all without a fall.
The way I remember it is first were the homemade permanent stands, next were the Bakers, as the first portable stand, then came the most dangerous, the home made copies of the Bakers. The first somewhat safe and easy to use climbers I can remember were the Amakers. After that a slew of them came along with API being the first I can remember buying. Youngsters take note that this was long before a safety harness was readily available to the hunter.