Charise Strandberg via Google+
Daniel Brinneman shared this via Google+
Antonio Valdés via Google+
In Tumblr it sort of works because nobody reads the "comments", instead some people share the content adding a note and the "comment thread" is actually a nested quote.
So many Youtube videos, so many blogger posts have this issue
I'm always surprised more people don't see how good this is.
When I browse Play.Google.Com, I see my friend's comments and ratings. That's invaluable to me.
person3: @friendname you'd like this
... and so on forever
If someone's referring something to someone, leave me out of it. That's not a comment to the OP nor to the masses. It's just cruft. You can allude to it "504 people shared this", but the detail is unnecessary.