Back in my post-college days, a group of (single) friends would gather to celebrate Anti-Valentines Day, shunning anyone who had coupled up. It was an excuse to party, basically. But had the world offered it to us, we might have downloaded the HeartBlocker plugin for Opera GX. HeartBlocker works by filtering out words and imagery attached to Valentine’s Day and replacing them with something less… precious. The plugin has two options: Normal Mode, which takes a more neutral approach, and “Emo Mode” — which dials up the angst in a big way. Think rain, dark colors, the works. Unfortunately it won…