I like to see the grading system be more stringent. You can easily get to the expert level in no time by simply asking questions or simply responding with things like thanks, +1, etc. I noticed that sometimes users hesitate to respond to a question posed by an Veteran or Expert because they get intimidated by their stars, even though they are very familiar with the subject and can help. Many new users get identified as newbie or junior, etc, but in reality they may know a lot about the subject in question. I, for one, like to see my stars drop as I do not consider myself veteran or expert because most of the stars I got, were accumulated by asking for help. I hope Erel considers this. I do not mind being dropped way down as I am still learning.