It will depend on the personality and personal knowledge of each member. Many higher ranks have more knowledge because commonly they are much longer being in this forum, moreover, those who get many merits and rank up as higher-rank members, commonly got the merits because of their constructive posts, which, need more knowledge and also other elements that are influencing.

In this case, a longer time period in this forum doesn't mean that the members have more knowledge or being more serious. We can also find many new or lower rank members here also have good knowledge, manners, sharing, experiences, discussion, and also information. So, we cannot similarize it.