I wasn't sure if I should post here, or resurrect the decade-old thread here: viewtopic.php?f=4&t=4481
Either way after searching to see if ADS indexing had been added yet to Everything, I came across that above thread asking for a mainstream example of app(s) that actively use xattr alternate data streams and was blown away that the one that is WILDLY popular in the last decade was never mentioned since it's entire backup/restore operation (primary) depends on xattr ADS.
That tool which I'm certain void has not only heard of, but may have even used is FILEBOT. If you go grab v4.79 (the last fully freeware) although even the > 4.80beta/final (now shareware) still maintain this functionality. Filebot stores the original filename and some other metadata within ADS of the files it manipulates which it then uses as the primary to "undo". It obviously is not the only app utilizing ADS that without specialized one-off utils like Nirsoft or scripts today makes them virtually invisible to most users. ES could change all that.
With that said, back to the real-world example - anyone who specifically uses Filebot against large media libraries (tens-hundreds of TB+) would absolutely see Everything as a godsend to be able to have it index, store, then use it's instant-db query to report on the origin of the files etc.
Today, there are different scripted solutions (I myself am a Powershell guy and have now been doing PoSH ADS querying) but we rely on (if we even store non-volatile at all) implementing our own back-end storage methods from flat data files, to sqlite etc. I myself already use Powershell to query Everything though, too and boy since I already store all my media library standard file info from all those source drives into Everything how awesome would that be even if it was a folder-like manual refresh process to just have that data in ES not only for my scripts, but heck just for quick searches!