Wow. What an argument!
I'm trying to remember if I've ever stopped patronizing someone in the Go World and why. I stopped buying stuff from people who went out of business, but that's not my choice. I guess I don't buy nice equipment, but it's not because I have a dispute with the vendors' pricing. It's more like my lifestyle does not include respectable people visiting my home to play go, and I wouldn't buy that stuff just for myself.
I didn't necessarily stop patronizing Alexander Dinerstein 1p when I noticed he was selling trick moves
by the move on some website (probably defunct). I thought that was in poor taste, but I guess that's his business if we wants to do that. Heck, I even bought Moyo Go Studio even though it was pretty clear the author had some...well, "issues" and wasn't exactly a friend of the go community.
I guess what I'm saying is a vendor probably has to be pretty darn evil for me to use market power against them if they haven't offended me directly. The occasional overpriced item that I don't have to buy---and almost every store on the planet has something like that---doesn't register on my radar.
Now, there are things I don't understand. I don't understand the popularity of Olive Garden, for example. But I'm not going to use fighting words over something like that.
There's an analogy I have that might be apt. Some years ago (I guess it was 2008) I was installing Linux on a machine for my wife. The conversation went something like this:
Me: What kind of partitioning to you want?
Her: Whatever you think, but at least X% of swap. And a big /var...
Me: Filesystem?
Her: ReiserFS
Me: I'm not sure how to say this, but...
Her (interrupting): Yes, I want the filesystem written by the convicted wife-killer.
1Me: Any reason why?
Her: I assume he'll have plenty of time in prison to make fixes.
2Me: Works for me.
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[1]
Hans Reiser[2] In retrospect, an optimistic prediction. However, the system did run without glitches, so...