It is worse on our side. Liberals seem to be smarter with this stuff. Conservatives are idiots who get suckered by crap like Pizzagate. We elected a birther after all.
Part of it, I believe, is that liberals do tend to require sources for anything claimed in a news/opinion article. Which forces the writer to research their point of view. Naturally, they find leftist sources, but if those sources refute their claim, then they don't make it.
Whereas on the right, there is no sourcing anymore. Anyone can write anything and it's the 'holy gospel'... for it came from a website that speaks to the right side of the political spectrum.
No sources, no checking accuracy, no background information, no adjusting one's arguments to that information. Just say it and spray it.