Would you rather them leave you un patched? It's changing software. There will always be patches with any software releases. I am glad that they take security seriously and release patches ASAP. I don't think they release security patches anymore than other forum companies do. As far as your changes. Make sure you are putting everything in your "custom.css" file that way you don't have to worry about changes. Me, myself, I love updates. I love it when they release them. Each one brings more stability, and bug fixes.