That implies the entries also are based on the Wikipedia paragraph, though I think the author means they do their own research. The entries I looked at list several high-quality entries in a bibliography at the bottom but don't cite any of the text. Also, I don't know who wrote these - do they have any idea what they are talking about? Is this LLM output?
If anonymity ever worked (almost never in scholarship), it may not work anymore due to LLMs.