high-rank member indicates that they have been in the cryptosphere for a while and would usually have answers to your questions or advice you might need but that doesn't mean that low-ranking members are less knowledgeable. if you stay here long enough you'll see low-ranking members that as far more knowledge than high-ranking members but the reason you don't really see a lot of them is that they don't stay low-ranking for long since they quickly accumulate merits and ranks up faster than other members.