I´m by no means a tech expert, but maybe I can offer a temporary solution, at least.
As far as I know, analytics.js is one of the many tracking devices on the internet used to analyze your browsing behaviour.
If you´re using firefox, I suggest to download the popular add-on "NoScript", which automatically blocks all such devices. If you´re having trouble with the front page´s comment section, afterwards, simply whitelist sbnation.com and celticsblog.com, or everything except analytics.js.