Facebook tried the whole real name thing, and it did not do much to stop people from being cunts with impunity. We have been over this.
Never mind that you also have to account for people who would rather not be under their legal name for a variety of reasons, ranging from being victims of stalking and abuse, to artistic reasons, to simply preferring another name than the one their parents chose for them.
Just a small note around the Qwant and Ecosia index, because I spent some time looking into the European index recently:
As far as I can see, at least Ecosia has started using it (2025-08-07), and they are using the same service to power their AI Overviews (2025-12-02). The index seems to be under the name of Staan and the website claims that Qwant, Ecosia and Lilo are using it.
However, staan's plan for web search says "French only (EN and DE soon)", so it seems like a limited rollout for now.