So, someone who gets it and likes it, please evangelize. I'd like to know what the big deal is.
If you don't like, don't get, or don't use Tumblr, please don't make the obligatory "I sneer at your Tumblr!"-type comment. I'm on an information-gathering expedition here, not looking for a geekfight.
PS: I has one. Don't know what (if anything) I'm going to do with it. But I has one. http://the-gneech.tumblr.com/