Agreed; if I’m writing help text or instructions, regardless of the use of “my” or “your”, I put pages or features in quotes or bold or italics or whatever format helps it stand out.
‘Click on your “My Cases” tab’
‘Click on “Account”’
etc
Reducing my/your in features is a good start (My Pictures → Pictures, as mentioned in this thread), but always treat specific concepts as proper nouns.
"My" is used to make it clear that it contains the user's pictures, not pictures from other people, Apple, the Internet, etc. Just "Pictures" would make it more ambiguous. (Not saying it's the right thing to do, just pointing out why they do it.)
‘Click on your “My Cases” tab’
‘Click on “Account”’
etc
Reducing my/your in features is a good start (My Pictures → Pictures, as mentioned in this thread), but always treat specific concepts as proper nouns.