Find the worst offenders and get the URLs of their most offensive posts. Next, send in a feedback form with the usernames and offending URLs. As I understand, recommendations have been made on having the political posts flagged like the NSFW posts so that they can be filtered out by users that aren't interested in such posts. It doesn't hurt to have a pro account when filing complaints. So far, the worst offenders are the loudest against it. Me? I don't post a lot of political memes, bit when I do, humor has to be the key element.