Indeed, that`s criminal. I would rather the updates not influence me at all (positively ore negatively) and I just grow based on time and work. To use ethical techniques, get penalized and don`t know why ... it`s a horror story for webmasters. Especially for the likes of me, who rely on 1 or 2 websites to make a living. I experienced it ~1month ago and I was so stressed out, luckily it was just something as a re-evaluation of my site.