Yeah, I found this an important aspect of the article. I don't know anything about the culture at NPM, but this feels related to the mismanagement of communication with consumers/the public about the incident itself. i.e., being secretive for no good reason.
Discussing anti-spam/abuse systems in specific detail would be fairly unusual, can you name any larger operation that does?
There's a lot of questions open that are non-specific to that though, so I'd agree that they could be sharing more.
Re:Npm operational incident, 6 Jan 2018
by xkcd-sucks on Sunday January 07, 2018 @05:33PM
(#16093109)
I think it's
> We don’t discuss all of our security processes and technologies [with each other internally, so dumb stuff keeps happening]
Isn't that the opposite of good practice? You shouldn't rely on obscurity. It's better to have the security processes out in the open so that it can be audited and flaws pointed out.