both. everyone has problems with whispers, they are not designed for “automation”/bots to use
and it’s bad practice.
If you entered a giveaway/won a prize via an extension.
Why would a user naturally look in whispers? Additionally problemative for mobile users as they have to “essentially leave the channel” to get to their whisper, but if they already have the extension open, why go to another “window”/section of the app?
The user would expect it to be presented in the same place they entered/found out about the giveaway/prize/reward/etc.