Yeah, a while ago, they're all Singapore reporting Amazonbot. Here is an example request:

    "GET /w/A_Wedding_at_City_Hall HTTP/1.1" 200 9677 "-" "Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; Amazonbot/0.1; +https://developer.amazon.com/support/amazonbot) Chrome/119.0.6045.214 Safari/537.36"

The actual IP is in X-Forwarded-For and I didn't keep that.

This is just a spoofed UA, because Amazon has a publicly available range of their bots and they are not in Singapore.

That makes sense. I wonder why Amazonbot specifically as a target to spoof.

I hoped to get them not stuck using a robots.txt but they refuse to obey it and keep hitting that page with various params. No problem for me, but they are going nowhere.

Perhaps result of A/B testing, because web masters less frequently block them.