To your question.. Why do we care:
a) Because it's becoming unwatchable and boring AF. You may enjoy acts of dominance or you may be a Pogie fan in which case you find him winning everything from 100 km out exhilarating but others don't.
b) Because it's an affront to our intelligence and experience. He's blown away records that stood for 20 something years, done by cyclists that were doped to the gills ("generational talents" they were called at the time - and probably were) doing numbers thatwere thought (and are) well beyond the human physiological capacity.
c) Some of us might be perplexed, annoyed or even bemused that everyone seems to be looking the other way. It's a cycling version of the Emperor's clothes parable with drugs (or batteries) instead of clothes. Every time I hear or watch the Eurosport announcers fawning over a 7.0 W/kg 40 minute effort, wondering in faux amazement "how does he do that" I am reminded of this Bill Bur set
View: https://www.youtube.com/watch?v=I745Ajeq_B8
only the question is some variation of "how can he do that time after time" (instead of why aren't women players paid as much as men) and the answer "because he is doped to the frigging gills" (sounds more funny if you imagine Burr delivering it)
d) Because we are entering another cycle of blatant doping in the sport and it's very possible that it won't survive the inevitable fallout. We've been here before we might not be here again after that.
I guess some of the other "5 posters" will have their own reasons.
And finally:
Why do you care so much about why "the 5 people in the clinic" watch cycling and why, obviously annoys you so much that they, we, call out whoever we think is doping? I don't read the Pog thread in the Professional cycling topic, but I don't think any of those 5 posters goes in there to vent about why the Pog fans watch cycling or can't see that the Pog is doping? The clinic is "the only place in the forum where we can discuss topic-related issues" therefore we discuss doping related issues. If this bothers you, it's not our fault.
Edit: Twenty years ago I had pretty much the exact same discussion with a user called "Bobke", an Armstrong fan, in the cyclingforums board. It didn't go well for him in the end. Or Armstrong.