I suspect it is a mixture of issues. One is the nature of the internet in polarising opinions. This has got mixed up with 'clickbaiting'. If you want people to read your insight; title it the best cables ever, avoid the foo idiots, don't be a fool, etc. That gets you noticed. It also means that the response is likely to be inflamed. At yesterday's bake-off, there were opinions expressed that were opposed, but no 'you must be a bloody idiot' comments. Keyboard warriors says it well and on both sides.
Audio is also a little unusual (understatement). We seem to be one of the hobbies where anyone spending a lot of money on equipment is a fool parting with their money. If you see a Ferrari, the majority will go ooh, what a car and admire the car and its engineering. Now a £50K speaker is a complete bloody waste and when anyone asks about getting a more expensive speaker will attract the 'waste of bloody money' comments. If you want a faster car that looks great and is comfortable, you will have to pay more. If you want a more natural-sounding amplifier, with lots of power and is reliable....you can get it cheaper by following my advice??? Yea. Or an Omega watch is admired but not a well-engineered CD player.
And then there are cables; polarisation, no difference or cheap is good or they make no difference or all of the science supports me and all the other comments, asserted over and over again. Wow, jackpot. I never knew science was so closed-minded. Most cable sellers will let you borrow the cables and you can then, in the safety of your own home, listen and if there is no difference return them. No product to defend, do it by post and no nasty dealer to con you with sweet words, little cost.
And the rather obvious comment, very, very few are converted by polarised arguments, shouting does not work but maybe it makes you feel good.
For me I have found some cables on some components make no difference, or they make subtle/useful differences, or they make a small difference that mattered a lot to me. Makes them bloody frustrating as you can't guarantee they will make a difference in every case.
And who knows, maybe it offends my aesthetics using a (review) £35K amplifier with a £1.50 interconnect.