Having links on the site fail arbitrarily devalues the entire page. Users aren't stopping and thinking "hey, is clicking this link going to waste my time?" - which results in the entire system being perceived as less reliable and trustworthy.
I agree that such discussions are off-topic, but is there a better way to handle these articles than "RTFM, noob"?
Of course the paywalls suck. Is there any user who has to deal with more of these annoyances than we ourselves do? There can't be many.
The question is the lesser of two evils. Anyone who doesn't get what a disaster it would be for HN to lose the NYT, WSJ, Economist, and New Yorker doesn't get HN in the first place.