Sometimes it can be hard to wade through a lot of notification emails from Aha! and keep track of what requires action.
Something I wish Aha! had was the ability to assign a to-do directly in a comment. That way the person leaving a comment doesn't have to leave the flow/context of the conversation, but a to-do can still be tracked for completion purposes.
This would remind me of the Google Docs behavior for comments, where if I tag someone it asks me if I want to assign it to that person.
I would expect the contents of the message to appear in the comment as normal, but also appear as a to-do in that record's to-dos tab and My Work (with a link back to comments).
Somewhat related idea: https://big.ideas.aha.io/ideas/APP-I-4749