I just noticed you have recently updated em.ufm
file in the UF database - I saw your comment in the file and tracked you down to here.
You say you would like to know who is using your formulas - I can point you to three images that I have made in recent years:Kalisetes Sefirii
used for these two created last year, 2016
The first image also uses used Lyapunov Forduckin
second image also uses TwinLamps
used in this one from 2012
In addition I'm pretty sure I have used Lyapunov Forduckin
a couple of other times but I don't have good records of where I have used colourings so images are difficult to track down.
Anyway, I enjoyed making all of these things and want to thank you for your efforts in the formula writing department. People like me depend on generous writers to provide the tools used to make our art!
Hope you found this interesting.