Grendel_Khan
Hero
Speaking from a generic and uninterested viewpoint, it is always a bad thing when materials become less "available" to a person that might want to acquire them.
There are, of course, exceptions for things that weren't meant to be published, are illegal, or other such things.
In my opinion every "published" bit of material gains a value that cannot be diminished just be having existed. Making that product harder to acquire is a strictly negative change.
Note: This is speaking theoretically. In reality there are many factors in the real world that go into why or why not items are kept "in print".
Personally, I don't think it's all that useful to engage with this stuff from a purely rhetorical or generic standpoint, or worse, to see everything in terms of heuristics and slippery slopes. My point is that this book just seems to suck. So maybe no one should continue making any money off of it. Ain't no one cracking open GAZ10 in 2022 saying "Oh my, if you look past endless amounts of awful, caustic so-called jokes, there's some great stuff in here for my campaign!"
It'll still exist, and in enough places and quantities for someone truly interested to find it. Just stop profiting from it, even a little.