KEY POINTS
  • Men who have sex with other men are being shown notifications to donate blood, despite the restrictions for many of them to do so.
  • It's a painful reminder that they cannot give blood in many countries.
  • It's "tone deaf," one Facebook user told CNBC. Facebook said it does not "target people based on their sexual orientation or their ability to donate blood."
Aaron Endre in San Franicsco

Aaron Endre, 33, of San Francisco, has listed himself on Facebook "as a man interested in other men" in his profile. He follows news about queer issues, and he is regularly targeted with ads in his feed that indicate that both Facebook and Instagram are aware of his sexual orientation.

Yet, Endre has been getting nudges on his Facebook feed to donate blood every few days, despite his efforts to mute them.