A lot (most, maybe) of the people on this site don't develop the content for their sites, they are either webmasters or, more specifically, search engine optimizers (some do SEO exclusively for $$). I know I don't develop the content for my sites. A big part of my job is to keep our sites optimized for the SEs. "Worrying" about the Google update is part of my job. I need to determine what has changed at Google as quickly as possible so I can adjust my sites accordingly.