i'm just wondering if anyone is noticing questions are upvoted very high, very fast. I'm not sure that there is an inherent issue with this.
I don't think I've seen any new questions that are upvoted very high: https://gis.stackexchange.com/search?q=votes:15 At first glance, I think that looks normal. The older questions have a lot of votes, but even the old ones really aren't high (at least by stackoverflow.com standards).
The 'very fast' upvotes could be users like me who always have the site open and sorted by new questions: https://gis.stackexchange.com/questions?sort=newest If the question is something that will be useful/helpful, I upvote it. Just like I did with your question a few minutes ago ( ArcGIS: Create a line layer from a point layer and csv data file)!
Also, users with RSS feeds configured are notified of new questions relatively quickly (depending on the refresh rate).