Having worked previously in the SEO-industry, I would say that you are not penalized for not using the Google Webmaster toolbox (analytics, WMT etc.) - however, by not having an GWT account Google has no way of getting…
Having worked previously in the SEO-industry, I would say that you are not penalized for not using the Google Webmaster toolbox (analytics, WMT etc.) - however, by not having an GWT account Google has no way of getting…