The imgflip community has always leaned conservative, even though the moderators seem to lean liberal. It got a little more extreme when they separated into categorized streams as opposed to everything just on one stream. And then it got even more extreme when most liberals retreated to the politics too echo chamber. There are still a few dissenting voices on the main/real politics stream, but not many. Which is a shame really, because being presented/confronted with alternative ideas is how we grow.