My browser / operating system: MacOS Macintosh X 10.13.6, Safari 11.1.2, Flash 30.0 (release 0)

When you right click on a list and then click “help”, the help says:

Help wrote:

To delete or rename a list, right click on the list.

Then it has a picture of a list and just “delete list”.

huh, that actually works

Then there is something I'm confused about.
If you right click a list and there is more than one list in your project it'll have “delete list | help | (other list)” in the things, and if you click on “(other list)” it'll receive the same name as the other list. I'm not sure what that is about though.

Bump? I guess? It has been 24 hours since the last bump…

It's a long-standing bug in the way the list's right-click menu is created in Scratch 2.
See here: https://github.com/LLK/scratch-flash/issues/552

Dunno why it was never fixed, since it was a really obvious one, and not that hard to fix in Scratch's source code.
(I guess it was never high enough priority / didn't cause enough problems for people… )

Since development is now concentrating on Scratch 3, it'll never be fixed for Scratch 2. But Scratch 3 should (eventually) have a more sensible right-click list menu…

Oh, I thought you couldn't rename a list.