The original culprit in this thread, invisibliX, has a menu item to do the same thing:Handy Finder keystroke shortcut to reveal invisible files/folders: Command-Shift-Period
Repeat to hide them again.
File > Show Hidden Files in Finder
Unlike Shift-Command-Period, invisibliX seems to restart the Finder.
Both of these methods do reveal directories with the hidden flag set. Also, it seems a Finder Find (Command-F) will find hidden directories, so the original poster can probably just Command-F [and type] Users to find his lost folder.
All this under macOS 10.12.6.