Strange and maddening rules
This is why I quit stackoverflow. I'm a top 2% but there became a point where people seemed to care more about the correctness of the information repository than they did about helping people.<p>It changed from a community vibe into a library and then mods started to stamp on some very good questions that people asked and closed them as duplicates (linking to a slightly different question) or as "too open-ended" or "off-topic".  
They gave those mods carte-blanche to enforce their way of viewing the site, of data and people and then meta.overflow adopted a hostile culture to shame people who questioned this world-view.<p>I really like that site but ended up hating it. My 2% rep is also a lie. I got so much from simple answers and so little from much more complicated ones.