Well, yes. If you have a profile, it's most likely there will be a link rather than just a text note. And the value of text notes ("here's John") is generally

Well, yes. If you have a profile, it's most likely there will be a link rather than just a text note. And the value of text notes ("here's John") is generally much less than of a profile link. Still - you're correct - it's well possible that someone tags a photo with a full identity information - and that person won't know it. But I think it's quite uncommon.