The following has happened more than once:
andras: "That Wired article you shared was a good read."
[5 minutes]
gmurphy: "Yes, that was a good article, thanks for filtering it for me."
andras: "Weren't you the one that shared it?"
gmurphy: "I did, but I didn't bother reading it until you told me it was good."
Everyone wins! Although after reading this, people will likely put less stock into the things I share, decreasing the chance that they'll read them, subsequently decreasing the chance they they'll tell me whether I should bother looking at the full thing. Complicated.
(Even now, the lies continue - I'm still only 1/3rd of the way into the article. I guess this all goes to show that the quality of things has become so predictable that opinion can easily be timeshifted into something more useful).