w00t! youtube-dl must've fixed Vimeo On Demand downloading - finally, I was able to fetch a purchase I made a couple years ago, simply using its own authentication mechanism (-u to specify the account, and it'll prompt for the password), no fussing around with cookie extraction or JSON files.
Be pervy, be kind. A kink, gear, and BDSM-friendly Mastodon instance.
Approval required for sign-up for anti-spam purposes. Don't need much, just enough to show you're not a spammer. Just a simple "I like rubber" works, even!