Board Thread:Support Requests - Getting Technical/@comment-24155515-20190312163651/@comment-24155515-20190313205540

Ooh, I just checked my email (I sent a question to staff today about it, just to be 100% sure), and they said they didn't know of removal (or specific addition) of support for page-specific notices but that the implication seemed to be that they appeared to used to work, so it's gonna be filed to be looked into.

The TL;DR of it all: No one knows how they're supposed to work at present, apparently. Not even staff.