Ukraine blew up three buildings in Russia and a bunch of American Reddit arguments stopped mid-sentence. The buildings were Yandex data centers in Vladimir and Kaluga. Yandex is basically Russia's Google. Its network collapsed twice after the strikes, and Kommersant reported the fried servers could take up to six months to fix. Then people started checking Reddit. Several big US political subreddits lost a huge chunk of their activity within hours. One analysis found an Irish politics sub…