Uhm i can feel your pain. I do not have a clear answer for you. But i can make assumptions.
People know each other. A lot of people on this site are in the startup scene from SF NY etc... many know each other personally. This is a huge help.
People cheat. i do not have any proof but sometimes i notice that something that might not be totally worth gets boosted by many points in a short time period. This can be by bot or maybe even being in a small company can help. Everyone gives a vote from the pc and the smartphone and the number goes up.
Sometimes it takes very little. I think that if a thread get a couple of votes in the first 30 minutes it is more likely that people will open it and will vote it. Generating an exponential effect. Same with comments. It takes very little to distinguished your thread from the mass. If you do not abuse it do not be ashamed of resubmitting your thread a week later. Maybe with a new title. Title is also very important.
I usually look mostly at the new section just to find threads that are worth an help. And i am sure there are other people that do it. You just need to be a little lucky. Keep in mind what might be the most interesting hour to submit for you target audience and try. But please don't abuse.
About you submission, you did a good job. You learnt something new, that's the most important thing. You might want to work maybe a bit more on the design, especially the colours, it feels, old. But really liked that hovering an event would highlight it on the map ;)