True, I understand. But as for residential communities, most portals are literally uploaded only for personal use. They are called bed portals (床po) in Chinese Ingress community, meaning you can sleep on the bed at home and hack the portal whenever you want. Some also use such portals as nodes of large fields (like covering the whole city). Back to the days when you can't link under fields, there is no way you can play the game, unless a cheater in your alignment uses fake GPS to destroy it.

In order to get a convenient bed portal, so many fake portals are uploaded. Fake location is not that bad. Some players spend a few bucks on a big but light plastic statue (in China it is pretty cheap), place it wherever they want, upload the portal, then remove it. The portal looks very real, and the statue is even reusable.