Most likely so the receivers of abusive traffic can contact the original ISP rather than Cloudflare having to deal with abuse reports.

From the deafening silence I'm going to take the less charitable interpretation that it's meant to enable Cloudflare to essentially sell Warp users' IPs to Cloudflare customers as an added perk.

Not step on the toes of Netflix, Amazon Prime and other services that rely on geo location for enforcing licensing of content / geo-location based artificial scarcity of digital goods?

I'd like an answer to this also!

It sounds like cloudflare spent the time to do away with hiding ip addresses. Actively removing that feature of a VPN, which you should get for free in a wireguard implementation, seems fishy to say the least. Especially since no reasonable explanation for this was given.

For instance, to play nicely with IP whitelisting in firewalls as an additional security measure.