Isn't hackernews meant to be politics free? Would be great if there was at least one place we didn't need to read these tiresome comments from people who can't comprehend that others have different value systems.
No, though there was a brief experiment in that direction in, IIRC, late 2016 that was aborted before it had run its planned one-week course.
I don't think it's a stretch to call the current Commander in Chief a "Denier in Chief". When asked about climate during the two debates, he obfuscates and talks about forest floor litter or OPEC-negotiation for low gas prices. When asked about global warming, he claimed "It'll get colder". He can't come out and say fossil fuel combustion leads to atmospheric change that warms the planet. To say that would be to go against his party, which is pro-fossil fuel and takes big money from big energy companies (but the GOP is also pro-renewable, might I add, look at Iowa, TX, and many red states doing well on renewables).
Hackernews is supposed to be about technology, which is governed at its core by the objective reality of 0/1 binary transistors and the complex scientific/logical systems we've built to interact with that science. It's not a stretch to support science on this forum. If you're going against the grain of science, I'd say SUPPORT your position, don't just state your position and ask for moderator take-down of an opposing view.