EDIT - someone else made this function + collapse threads already:
https://kbin.social/m/kbinMeta/t/22210/kbin-enhancement-script-Userscript-to-collapse-comments-and-add-domains

(doesn’t work with microblog section of the site / only post comments )

kbin.social - I wrote a user-script to add the home-instance name after people’s username (in comments and posts)

users from kbin.social have nothing appended after their name
Preview:

https://i.imgur.com/yDRC4Ao.png
url

Can install with tampermonkey, greasemonkey etc.

This same script - but for beehaw

https://greasyfork.org/en/scripts/468708-beehaw-lemmy-add-home-instance-name-to-username