I'm coming at this as another blogger who makes a living off of writing out my opinions, and from that angle, you're not trolling, just offering a strong opinion. You truly believe Tumblr is kicking Posterous's ass (the mildest possible "swear word"!) and you present your case with evidence, not appeals to emotion or coolness. And now you're perfecting the article based on feedback, which is one of the coolest aspects of blogging and interacting with your readers.<p>So because of this piece, I'm following your blog. Please continue to rock.