With that title I probably violated several things that I recommend not doing (act professional, be careful of what you say and how you say it, etc.).
I stumbled on a blog that was titled “The Stupid Things People Do on LinkedIn”. The poster then proceeded to lash in to people that violated his perception of what LinkedIn should be and how people should behave on it. My first thought was relax it’s not your site. You’re just a another member. The second was that did this person realize that their post was part of their online brand.