As is the guy in the below quoted tweet.
FWIW, while I'm an entirely unsuitable person to be a judge of any kind, I would also be irritated by this person.
Probably without knowing what they did or who they were, just due to the Redolent Aura Of Smug +5.
(30' radius, roll d100 to check vs instant grumpiness, murderous rage on Critical Fail)
Also, I hadn't run into Gripnr before. That didn't produce rage, just a resigned sigh: you know what kind of folks they're going to be by the fact they have a loose -R on the end of their app, like Flickr, Tumblr, Grindr, Scissr etc-r. I guess they're all just wannabe pirates.