Yesterday we received a monthly bill for Google Maps layer calculated with new pricing system - we had 1500% rise (15X, from $1400 to $21000+). As it was stated, Wikimapia cannot spend so much as it has much lesser income.
Sorry, we are starting to restrict use of Google Maps layer. We are working on one solution that will allow anyone use it's own key from Google maps for personal use on Wikimapia, I hope it will work without breaking Google Maps TOS (https://cloud.google.com/maps-platform/terms/).
I will publish personal key for WM guide.