This is nuts and must be fixed with the highest priority. We have the SiteGround Optimizer plugin as well and as soon as we have incoming links using UTM tags (this is THE most standard form of tracking on the internet), suddenly SiteGround Optimizer is doing 301 redirect loops (this totally kills the site) for totally random people who did not even click a UTM-tracked link! One of the redirects is to the UTM-coded URL. This happens in incognito with cleared everything on first time visits.
It appears it’s a generic Chrome problem (that happens with all RSS feeds) rather than a WordPress problem; basically Chrome doesn’t have native RSS feed handling, you need to use a plugin. Since I use Google Reader, I love Chrome Reader. In fact, since I use the Chrome Reader plugin, I didn’t even notice the RSS issue and a reader pointed it out.