Dave's tweets, page-61

I'd have to agree that it's in pretty poor taste to edit a tweet, because it very well could real considering its just some words added to a picture. Even if professionally done there wouldn't be much difference than what you can do in MS paint. Now if you had drawn the buildings in MS paint then it would have obviously been fake and a non-issue.
That being said... if you're basing your investment decisions off unsubstantiated images posted on a forum... maybe you deserve to lose a few dollars to learn a lesson.