I have recently released a chrome extension and it is at present getting about 3 upvotes a week. Not as many as hoped, but still not bad. However, this may not be enough to get it into the apps tab (which is required for the competition) and I feel that it would be nice for my application to be at least considered.
I assume that many other people feel the same way about their programs, given the amount of time and effort writing programs takes when you have to fit real life around it. (And most other people didn't find themselves with a month of free time). There aren't many actual users on this site, so getting a lot of upvotes is also hard if your question falls off the main page.
An app released a month or two ago, even if it averaged a vote a week, would still make it into the apps tab. Even more so as there were less apps months ago, so more chance of it being seen and upvoted. This biases the votes towards the older applications.
(I am now off to upvote every app I think worthy and that I would consider using. Especially the ones with less than 6 votes). (EDIT#1: There is some neat stuff out there that I missed. I have significantly more chrome extensions now :) ).
EDIT#2: I hope this didn't sound like me complaining. It was just an observation and I assume many app authors who have recently released apps, or have apps that have fallen off the radar and the author has not been able to get the publicity are in the same boat.