I don't think rank should determine if you will listen to someone's advice on the forum or not, make sure you always focus on the quality of post and not the rank making the post. Let's assume you asked a question about cryptocurrency trading and a newbie answered the question, that those not mean the person is new to cryptocurrency trading, he might just be joining the forum but will have been in Cryptocurrency trading for long term, so if someone like that gives advice it might be more useful than a legend member that those not really know much about cryptocurrency trading. Some people are newbies or lower rank on forum but might have stayed long in Cryptocurrency.