What we could really use is a karma-based system, so that people could collaboratively filter others' posts, such as "OMG!!! Like these cupcakes are terrific!!!" which to my mind is just as bad if not worse than Spymaster...
Actually, it's not the first business book manga for the English world. That honor would go to the 1987 translation of a book on Japanese economics, which I remember reading avidly at university.
#5, even if you're not a cat person, you can usually laugh at cats. Cats pretend they have a lot of dignity, but they're more prone to silly situations than one's drunk uncle at a wedding with a loose belt.