That (near decade-old) article really only describes conservative interests affecting the bias of the Wikipedia articles. Many editing incidents have happened since then, and they’re almost entirely attributable to conservatives bias, as well.

https://en.m.wikipedia.org/wiki/List_of_political_editing_incidents_on_Wikipedia

Of course, it’s the same with all of these other websites, but conservatives are the ones insisting that the entire internet is pitted against them by the powers that be when that couldn’t be further from the truth.