You need to do as I do. Make an account. Be a tame liberal. Gain trust. Start slowly upping the insanity (which isn't hard, we are already at levels of unbelievable retardation)
Just pose as liberals. I drop a little bit of insanity into my liberal rants every once in a while and it gets upvoted and gilded. Doing my part to slowly push liberal so left they fall of a cliff.
I pose as a rabid liberal on reddit because literally spouting the vanilla leftist ideology both A) Gets approval from redditors without question and B) Further cements the absolute insanity they are promoting.
I like where this is going. They are contributing to their own downfall.
You'll just get banned immediately, though. That's not a good strategy.