If people are watching your work closely enough to document errors in it, and they care enough to make a wiki page, you’re doing truly great work.

I completely agree.

But as a person in charge of keeping a brand new (volunteer) FM station running smoothly, this is horrifying. I feel every technical problem physically in my body.

It's not them, it's me.

Preach.

And now compare to modern endless stream of junk that flows into oblivion.

Yes exactly. And this is an incredibly short list. Great engineering over there.