You are generous; but you better be some rich dude with millions of dollars to burn! Otherwise, pay of your debts before you buy coffee for strangers. Also, why not donate to a more worthy cause? Seems foolish, just saying

I'm all for helping out one another, but doing good for people "anonymously" then emailing the Chive to tell everyone about it seems contradictory. Plus coffee is gross. haha

I think that's a common misconception you have to be wealthy to be generous. People in third world countries have little, but often manage to offer something to travellers or those passing through. And I don't think they posted the pic for credit sake. Inspired
me to go do the same, so guess it served a good purpose after all