Not by a long shot. More like a sign in Braille explaining how to get further assistance if needed because not every sign the place may be accessible to the sightless.

Why should I or anyone else have to add code specifically to tell users of NoScript that they need to be reasonable?

Because so many sites use unreasonable scripting. NoScript is a reasonable defensive move because of too much aggressive scripting.

Honestly, do you ever step back and wonder why NoScript even exists?

Bottom line, though, is nobody has to do much of anything for anyone, and it's entirely up to the site owner to decide how they treat people with NoScript and what it's worth to add an additional 20 character or so of boilerplate text to a page.

If nothing else it's a courtesy.

It's just like smiling at people you deal with in stores or holding doors open for strangers. Do it, don't do it, whatever you think is proper. Make the world you want to live in.

I get that my choices are niche, and that's OK. I can live with the downsides. There are very, very few sites I can't simply close a browser on if I don't care for how it's presented for me. No one loses any sleep.

I suspect most people with NoScript use default blocking and whitelist sites as needed. So if I get a clear sign that I need scripting before I start doing anything, and it looks worth it, it's easy to allow the domain. That doesn't require any real effort from a developer, and if that's considered catering then we're all screwed.