Maybe you can develop a special feature where if you message someone that has blocked you it goes into a special folder that can still notify the person that's blocked you that you have sent a couple messages and they could be limited... But first they are screened for any negativity or cruel intent first as a suggestion... But it could be a way for misunderstandings to be cleared up and keep people from treating each other as disposable... I've been blocked before over simple typos and before I had a chance to go back and correct it I was blocked. I think this is a novel idea and should be implicated and also track how often people block people and send notifications to someone who blocks a lot of people inquiring so that your you are able to manage your app more efficiently because it's a social app not an antisocial app... Figuring out how to connect people and connect more people improves the standard of your app.