I've got no right to comment on what others do, so long as it's not hurting anyone (and no, driving up the price of a niche collectible isn't keeping anyone from owning or riding a bicycle). It's simply none of my business.
I'm also secure enough in the way I live to not feel the desire to tell anyone they are "wrong" (as if anything discussed in this thread were a moral issue).
I'm not suggesting my way of thinking is suitable for anyone but myself, but I will say I've been a lot more content since I've decided to not concern myself with things that are out of my control - especially when they don't concern me. It pretty much makes news and social media irrelevant (so many hours reclaimed right there).
That said, I've committed all three "sins" here at various times. At this moment, all I really want to do is ride my bike, and admire the old bikes of others. That's why I'm here. Yeah, I still have some bikes, but it's a number that makes sense for me. And it's subject to change. Thanks to all here who are preserving bikes, bringing them to shows and swaps, and posting pics.