I feel like you can probably patch it to intercept the "message_changed" event pictured here: https://user-images.githubusercontent.com/519424/188518385-f1e319e

I feel like you can probably patch it to intercept the "message_changed" event pictured here: https://user-images.githubusercontent.com/519424/188518385-f1e319e4-16c6-499d-b153-e24891520e75.png https://user-images.githubusercontent.com/519424/188518385-f.... Then just send the event on its own instead of applying its effect. My workplace administrators have disabled deleting messages on Slack perhaps with the intent of preventing this sort of thing. Usually if someone sends an "oops" message they'll edit it to ".".