For this example, we haven’t actually added keywords to any links except “Installed Plugins”, which gets all of your installed plugin names (which are not translated) as keywords. Do you have any plugins with “user” in the name?
All of the sidebar links which we filter on now are translateable. We do need to keep this in mind when adding additional keywords for the sidebar search – we did this when we added keywords for site setting search (which are also not widely used as yet). cc @kris.kotlarek so you are aware