For example, omitting relevant things, focusing on only some considered more important by some people, using impressive data to impress people with no deep idea sbout a topic without knowing how to interpret data relative to the full phenomena... the list is endless.

What is a fact is that politicians and secret services, according to Pedro Baños, often enter and manipulate in subversive ways information, specifically he mentioned controversial Wikipefia articles. He is a retired military.

So my advice is that we should all doubt by default about every topic that is politicized and gather information from as many sources as we can that we have a reason to trust. An open place where absolutely everyone can add and remove things is not a source I would take as primary. Yes , there are links. But the time it takes to go through all that is unfeasible for most people.

My advice: choose many sources, compare. Specifically, there is nothing as enriching as putting people with different opinions face to face for a live discussion. I fo not like arguments like 80% of "experts" say... that is not an argument... and science has plenty of examples where almost everyone was wrong, from whcih this man is an example: https://en.m.wikipedia.org/wiki/Ignaz_Semmelweis

He was beaten to death and enjailed in a madhouse, even their mates ignored him at the time. He was right.

What usually happens in these forums is that they do a lot of cherry-picking, or, at least, that is what I believe. I could be wrong, though.