And welcome to the frontend Thanks! I can't believe it took me so long to embrace it haha.

Yeah, so anyone that adds a message to a Thankbox can leave their email in order to get a link to edit their message before the box is sent. This is optional - I really only aim to collect data that's necessary.

I'm currently working on a feature to allow the recipient to respond to everyone who contributed (if they left their email) which I think would address what you mention.