I love how many porn sites are supported by this

There's not much motivation to create a non-porn site YouTube clone. You have to believe you can do it better or need to not host your content on YouTube, and you have to be able to do it.

Porn has the need (the mainstream providers generally delete porn) and the sheer resources to do it.

If there is a will, there is a way.

The playlist feature is actually one that typically annoys me. So I've just re-read the manpage and found the --no-playlist argument.

Sorry! The problem is that our userbase is split about wanting the playlist or the video. You can create a file ~/.config/youtube-dl.conf with the content --no-playlist so that you don't have to type it out every time.

Right. My point was that the mention prompted to me to read TFM and find the fix.

I've just done the config file setting you mentioned.