Worse, I feel like Discord's threading feature feels incomplete without the ability to do this. It feels like it implies it can do this when you use the feature

Worse, I feel like Discord's threading feature feels incomplete without the ability to do this. It feels like it implies it can do this when you use the feature, that you'll be shoving associated replies into a thread, but it doesn't actually work that way and essentially fails at what I'd consider a basic requirement. It would make more sense if it worked like Slack, but even then, you can't shove existing messages into a thread for some reason. There must be some absurd technical reason such a feature is impossible, or UX designers decided it was too complicated to design for some reason. There is no "multi-select" for messages at all in Discord, even to batch delete...