Delirious waystones on delirious tiles should have some effect

So as is, when you use a delirious waystone on a map tile with a local delirium mirror, the game uses the delirious waystone and discards the local tile's mirror so far as I can tell.

It would be nice if this did something like increase your level of delirium when you use this combination.

Just tested it last map, this is still the case. I wish it did something.

Fully agree. It almost feels like you're being punished for instilling your Waystones because they end up "cancelling out" existing mirrors with what is usually a less rewarding bonus.

I think your suggestion is spot on -- there's an easy fix here where instilled Waystones synergize with nodes that already have mirrors and confer some kind of additional bonus instead of ignoring the presence of the mirror.