I was going to suggest it could have been something as simple as a name. Posterous is a proposterous name. It's horrible. Tumblr is an equally shitty Web2.0

I was going to suggest it could have been something as simple as a name. Posterous is a proposterous name. It's horrible. Tumblr is an equally shitty Web2.0 crap name, in the same vain as the ghastly i prefix. iYahoor!