Opening a comment in context instead of in isolation when you tap in on your profile would be a great change I think. If I want to revisit a comment I made and it's part of a longer thread I would always want to see it in context.
On a related note, if you tap the "X comments" button on your profile your taken to what's ostensibly the comments tab on your profile, but showing your posts and not your comments. You have to tap Posts then back to Comments to see your comments. Would be great to have this bug fixed.