They are trying to cut down edit abuse as noted in the last update to prime
As of September 30th edits will be like this:
Reporting invalid portals
sending updated titles/descriptions/pictures
The biggest change: you only get a rolling amount 28 location edits per every 13 days.
Currently this only affects prime users but with redacted going away on the 30th everyone will be locked down to 28 locations per 13 days if the agent has reached level 12.