It is, and unfortunately it's also incredible how much of it simply doesn't work, or fails in obscure ways, without JavaScript. I use NoScript on my personal laptop, and I often have to add sites to the temporary-allow list several times a day.

(Please don't say "just don't use those sites, then." I'll use something else if there's an alternative, but there often isn't, and I'm not willing to cut myself off from a big chunk of the web on principle alone.)