No, that is not good enough, analytics.js is loaded into the web page, Google grabs the html content through analytics javascript without respecting the robots.txt because it's not Google bot crawling, permission is given the moment we signed up for analytics.
It's not just the title leaking...
I don't think conversations need to be sniffed by Google Analytics, so is there a way to exclude Google Analytics from conversation pages?
Maybe wrapping <xen:if is="{$isConversation}"> around the analytics template works, but what would the isConversation variable be?