It's an open secret that encyclopedia authors, dictionary authors, and map makers all plagiarize one another, to the point where cartographers have added fictit

It's an open secret that encyclopedia authors, dictionary authors, and map makers all plagiarize one another, to the point where cartographers have added fictitious "trap streets" to catch others from plagiarizing their maps, and lexicographers have added Mountweazels. It doesn't surprise me nor does it upset me that Grokipedia would include Wikipedia as an input source, nor do I feel like they're hypocritical for doing so given their stated goals. If you think a source has a bias problem, it makes sense to use that source for reference while applying your own bias checking to it.