A: Google Maps has introduced a reverse-geocoding feature, which gives priority to the closest object in their database, instead of the desired coordinates. The closest object is shown with a bright red marker with the map centered on it, and the requested coordinates are given a green marker that often blends into the background or is outside the displayed area. It might be called the "you must have meant this" feature. Our use of the Google Maps KML generator for Google Earth links is also affected. That's not something that can be fixed here.
A: A user script is available, but easiest is to use WikiMiniAtlas. Click on the to the left of the coordinate link will open a frame with a map of the surrounding location populated with Wikipedia articles.
Google Maps China should probably be updated to "http://www.google.cn/maps/" as root URL, since google.com is entirely blocked in China, users in China would need to use VPN for the current link to work.
All seem to have JS-based API that supports long/lat input, as demonstrated with this website. Someone with time might be able to figure out how to integrate with them. --Voidvector (talk) 00:15, 4 June 2017 (UTC)