I got pretty excited when I came across
custom links since it appeared that it would be a neat way to share data between addons in a few specific cases.
So naturally I gave it a try. Within my own addon windows and in d() prints, the custom link (and link handlers) works as advertised, but when posting the custom link in chat I just see the raw link text "|H1:custom:data1:...:dataN|htext|h"
Should I assume this is intended behavior... and in hindsight why I don't see custom links posted all over zone chat?
I guess the better question is why support custom links at all if they can't be shared (perhaps that would be a good disclaimer to include on the custom links page)?