Paranoia over the FOUC is the bane of my web browsing days. Any time you use unstable internet (hostels in poor countries), designers' prude paranoia over their naked content being shown without the proper styling or font, it ruins modern web browsing. I stopped timing when every other page I saw was literally > 1 minute of waiting. Started using view-source: to just read the damn content.

Please, for the love of God, stop hiding content behind styles. Please. Please please please.