In order to make URLs more relevant, while also standardized, I propose the following schema:

en.wikipedia.org/wiki/Special:Gather/id/123456/My-favorite-animals-by-Yurik

Where the number is the list ID and everything afterwards is a localized message {label} by {user} (for English). The string will never be parsed, only the ID will be used to load the list. Afterwards, if the string does not match what it should be, a redirect will be made to the canonical form of the URL.

Note that the spaces are replaced with '-', not '_', as that is more readable, easier to type, and appears on other sites like stackoverflow, etc.