Totally Depressing Fact: This Photo of Gay Teenagers is Punishable by Death in Iran
Yes gay people have a hard time in Iran and other countries in the middle east, however it is an overstatement that pictures with a rainbow flag would sentence someone to death. You'll probably risk lashes or prison, which is horrible, but death, no.
homosexual "activity" (the sexual act) can get you executed though.
I'm not trying to defend Iran or anything, just pointing out that the "depressing fact" is not really a fact but a dramatic exaggeration of facts.