As a former part of the nostalrius staff I can just confirm what Shiamorah said. Everytime you bump your, or someone elses, thread/ban appeal, you move further down in the line.
Staff goes from older pages to newer pages, not from new to old. Be patient once you have submitted a ban appeal and wait for their answer. Then provide additional information once they have asked you to do so. After giving more information they'll add you to the list of reviews.
Ban reviews usually take quite some time, depending on the actual ban reason. You already said, they are all volunteers and this is a free server.
The staff also does not ignore ban appeals or players, or specifically you. They answer when they are able to give a final answer. They won't tell you anything when they're not done investigating.