Everyone has implicit biases. It takes a huge amount of effort to work past them and write content that is considered unbiased. The latter is a group effort to achieve consensus, which even in the hard sciences is often difficult, but Wikipedia has had fantastic successes there - e.g. look at any controversial subject (someone mentioned BP, and how half the page was about their "controversies", which does not say that they are true, nor false, but acknowledges that they exist all the same - most people, with the exclusion of the BP execs I am sure - would consider that to be a state that is unbiased).

In fact, the OP brings up a major source of bias to begin with: if someone wants to federate a blogging website, why would we even talk about it - just DO IT!:-) However, the name "Wikipedia" was mentioned b/c it is popular. This introduces a bias whereby the rest of the discussion will be predicated upon the lines of what Wikipedia is vs. what it is not. Even though the OP made it clear that "Wikipedia" is not the goal of that project at all. Even dragging its name into it has thus introduced a source of bias, rather than allowing everyone here to discuss the merits of this proposal on its own, as if made from scratch rather than a Wikipedia-clone ("good" connotations?) or Wikipedia-wanna-be ("bad" ones?) or Wikipedia-whatever.

I can get why that user might have a pro-communist bias themself due to being from a pro-communist instance, but the articles they linked seemed to be an accurate enough representation of how the far left and far right see Wikipedia.

Maybe not completely accurate to how it really is in all aspects, but I don't really care enough about Wikipedia's biases to fact check each contradictory claim in each article. I barely use it as a point of reference anymore anyways. (Though I've found it tends to have a liberal bias, like both the articles stated. I seem to remember that during the past election, some sections of the articles about Trump or featuring him in some way used very emotionally charged language)

But accurate or not, I still find it hilarious to look at the articles side by side. One claims the articles are written mainly by teenagers and the unemployed and supports communism, and the other claims they're written mostly by privileged White men who hate communism.