I completely agree that new members are very capable of rational and pertinent opinion, but it is much less often that you see someone who has been here for awhile (e.g. Feb07 was the earliest on the last upgrade, I believe) making an irrational or senseless post, or posting an opinion that didn't seem at all credible. I'm not saying that it doesn't happen, but much less often, IMO. I don't think it is unreasonable that your posts may not carry as much credibility or be trusted as much until you have made a few quality posts and added to the discussion(s) a few times.
“Those two kids, they’re champions,” Krzyzewski said of his senior leaders. “They’re trying to teach the other kids how to become that, and it’s a long road to become that.”