Scaling into Europe is a headache when your site starts cannibalizing itself....

https://www.random-bookmarks.win/expanding-into-europe-is-a-headache-when-your-traffic-tanks-during-a

Scaling into Europe is a headache when your site starts cannibalizing itself. We’ve all seen the traffic drop after a messy migration, usually because hreflang tags are broken across subdirectories