The problem with slack is it only takes 1 bad user in the organization and it becomes hell.
My org has both app devs & app users within slack. Users can spam channels and DM devs when they figure out who the useful idiots are. The "notify anyway" button gets used, frequently.
The idea that they expose this button to the sender is toxic.
That's a people problem though, not a technology one.
Surely you can resolve this by talking to the person, then their manager?
If it still doesn't resolve it, mute them and advise you've done so due to abuse of notifications, and their issues will always be looked at when you're next looking.
The problem with slack is it only takes 1 bad user in the organization and it becomes hell.
My org has both app devs & app users within slack. Users can spam channels and DM devs when they figure out who the useful idiots are. The "notify anyway" button gets used, frequently.
The idea that they expose this button to the sender is toxic.