I've eventually learned to limit my usage of the Wikipedia to science, distant history, and synopsis of works of popular culture while avoiding like plague current politics and ongoing events.
...but thats on english wiki only. As pole understanding english, I despair for my natives trying to use polish wikipedia, because here politics creep everywhere. I remember what a disaster polish's article on Big Bang was before its ridiculous state was called out and went viral in sceptic circles as being plainly antiscientific. Until then it's contents were more fittingly titled as "philosophical and religious criticisms of Big Bang theory". Remnants of those may be found in Article's discussion which filled with philosophical and religious debate about Big bang.
Honest question, what alternative do you use instead? HN mostly links to news article, and I would question if current politics and ongoing events are more accurately written by news media and with less bias. I don't know about polish news companies, but its not uncommon elsewhere that news companies are openly biased towards one political party or bias their articles towards their main customer group (UK example from Yes, Minister: https://www.youtube.com/watch?v=DGscoaUWW2M).
We have books or research papers, but meta research generally acknowledge that researchers include bias into their work, often linked to the opinion of those that funds the research. Meta research is thus generally a bit better, especially the meta-meta-research papers, through it generally takes a quite political contested topic for that to happen which then further increase the risk of bias by the meta researchers selecting results that favors their side.
In terms of news, I use Haystack (http://www.haystack.tv). It aggregates YouTube videos from various media sources daily, much of it American (then again, that might be intentional). You can also pick and choose specific sources and topics you want to follow, even cast to Chromecast. The developer(s) are pretty responsive too and the app is free.
My only frustration is that it only aggregates videos on YouTube. If you want to get video news segments from media companies that publish their videos to a proprietary CDN or hosting service, you can't use it with Haystack.
...but thats on english wiki only. As pole understanding english, I despair for my natives trying to use polish wikipedia, because here politics creep everywhere. I remember what a disaster polish's article on Big Bang was before its ridiculous state was called out and went viral in sceptic circles as being plainly antiscientific. Until then it's contents were more fittingly titled as "philosophical and religious criticisms of Big Bang theory". Remnants of those may be found in Article's discussion which filled with philosophical and religious debate about Big bang.