This is definitely something I can look into. I do something similar in comments threads, as the API will still return the contents of deleted and removed comments, so Arctic will check if it’s deleted, and prevent displaying the content.
I can do the same for profiles by either filtering out the entry entirely, or replacing its content with Deleted by user. For this, I will likely just add a toggle to the filtering menu in the profile tab. I don’t delete much content, so I had never really noticed this as an issue.