She didn't do it to ruin him, or even out him, she was being hit on by an annoying guy and tweeted. Such is life. That someone else identified him, oh well.
I mean would this have been different if it happened 10, 20, 40 years ago and she had been a guest on The Tonight Show and told the country about the annoying guy simply named "Brian" who would not shut up and opened a sunny window on a redeye flight? Same situation different forum, same outcome.