Okay, I get it, but in that case the marketing is doing engineering a disservice when they implement needlessly aggressive and redundant advertising of Chrome on properties and user agents which ought to be almost 100% identical functionality in Chromium based (if not web standards compliant) browsers. To put it plainly I can understand if Google promotes Chrome when there is a genuine technical feature on one of their properties that needs Chrome to function, but in most cases this is not so, which means the marketing is not for technical reasons but merely to capture more market-share for its own ends, which would make sense if they were selling their browser but that too is not the case, so why? I mean, the ultimate aim of all companies are to grow and profit, but the playing field is neither infinite nor the audience stupid, so they should take care not to keep damaging their reputation.