I suggested nothing of the kind, only that he could quite easily install the disks from one side only should he desire. They probably should be vibram type outsoles, and it goes without saying they have to be thicker than the length of the taps used. Otherwise it’s easy.
The question was about damage to BOATS, not hiking. I would not use bars at all for any kind of extensive hiking, though many people on here have reported that they don’t mind. They are a pain enough on head-sized dry boulders for any distance.
We fished with a guy that does not allow spikes/studs of any kind in his boats. We poo-pooed this attitude but then we saw the chunk of flooring removed by a previous angler with spikes so we got off our high horses.
As for the rest of your comments I don’t know what the F you are talking about. It is axiomatic that larger bars will grip better, which is all I care about in hard wading conditions. They are FAR better than spikes except for a few special surfaces. To paraphrase Ron Swanson:
Dear Disks, you are aluminum that is lying about being bars. Be bars or be nothing. Yours, Ron Swanson. Also as far as I’m concerned not wading is lying about being fly fishing. Be wet or be nothing.