The only way to have a shot at winning (IMO) is to be fully engaged in the contest. This means very frequent posting of pics, videos, upgrades, future plans, etc. I have run a couple of times and when I did, I posted daily and even twice a day. Sometimes people accept the nomination, life gets in the way, and they disappear and don't post. That is really what everyone means when they say know what the expectation is.
May people decline because they do the math and realize they don't have enough content to keep up with daily posts.