As I noted in T169315#3735840, mediawiki.hlist is so far very weak compared to Edokter's snippet. Starting with the fact that mediawiki.hlist has '•' as a delimiter (instead of ' • '), which creates disproportionate space if <li> elements are not followed directly one after another without any spaces. ;: lists aren't supported too.

In T169315#3735840, @Jack_who_built_the_house wrote:

Right now the following wikicode

<div class="hlist">
* element 1
* element 2
** subelement 1
** subelement 2
** very very very very very very very very very very very very very very very very very very very very very very very very long subelement
</div>

which is displayed the following way in enwiki

is displayed like this on en.m

and like this in enwiki on Minerva skin

.hlist-separated doesn't help much, only creating misplaced bullets.

I was going to comment here but it looks like a) I agree with taking this out of core and b) I was going to say a lot of what T213239#4908027 says (or at least the top half). Maybe this should be merged to that task and turned into a "let's figure out what to do" task, especially since this task is connected up to a suspect "move JS to core" whereas hlist is not JS, and because our CSS solutions have moved on (though large wikis have lots of debt to clean).

The blessed day for English Wikipedia has come. :)

Now just fleet_count - 1 other wikis that use the class.

I'm not quite sure why the style that is common to everyone is removed from the MediaWiki? I think Edokter's snippet should be implemented.

I'm not quite sure why the style that is common to everyone is removed from the MediaWiki? I think Edokter's snippet should be implemented.

Perhaps this might be a good candidate for any kind of global templates whenever that might arrive, but I don't think it makes sense in MediaWiki core - the issue we found was that skins (e.g. Minerva) would use it, but it would get broken by unexpected local styles on the same class that overrode it.

It's either a stable set of styles that anyone can use, or part of the content and subject to change at any time. Currently it seems like the latter.

In T174399#9013801, @Jdlrobson wrote:

It's either a stable set of styles that anyone can use, or part of the content and subject to change at any time. Currently it seems like the latter.

It seems to me that this is a stable set of styles, which seems to (need to be checked) not changed from wiki to wiki for 8 years :)