Signal tried to run a very honest ad campaign on Instagram. Facebook said no.

Privacy-oriented messaging app Signal tried to run a very candid ad campaign on Facebook-owned Instagram, but it wasn't meant to be. 

Signal explained how it went down in a blog post Tuesday. The idea was to post ads on Instagram which use the data an online advertiser may have collected about users, and basically show the user what that data might be for them.

"You got this ad because you're a teacher, but more importantly you're a Leo (and single). This ad used your location to see you're in Moscow. You like to support sketch comedy, and this ad thinks you do drag," one of the ads said. According to Signal, the ad "would simply display some of the information collected about the viewer which the advertising platform uses." Read more...