We have a contrib module that does this, but since WordPress has a function for this in core, I'm wondering if we could/should too...?

I'm guessing most users setting up a Backdrop site wouldn't know to install Invisimail to protect email addresses entered in textareas.

(Triaged as possible accessibility issue on 08/17/2921. Seems like we are looking for feedback on how to accomplish this without hurting accessibility.)

GitHub Link: 
https://github.com/backdrop/backdrop-issues/issues/3270
GitHub Issue #: 
3270