I absolutely loved this article, - I'm especially guilty of #2. In the last year or two, I've forgotten 3 birthdays (I never forget birthdays,) and replied to 5 different friends I've had FOREVER days after being contacted. I've no doubt more than one of my friends was quite peeved that I forgot to say congratulations on getting married/giving birth/living to 30 because I was too busy telling people that I couldn't bring their ex they dated in 1992 back to them or because someone decided to give me a speech about how my love of spells was some insult to their love of Jesus. :P
The bad thing being I don't think I care all that much if people hate me for any of it. ;) I can think of times I've been peeved at someone because of the reasons mentioned in the article, but I don't recall it turning into full blown hate.
Either way, I found it amusing. Enjoy. :)