>>27459126When the game first launched, you could tell when you were getting close to a Pokemon by the number of footprints under it in the radar list, and its position in the list. After a couple weeks, the feature was crippled and always showed 3 footprints regardless of distance. List order also became unreliable. This persisted for a few more weeks and country releases. Frustrated people figured out how to cheat by querying the server for nearby Pokemon and mapping their locations. A few websites opened up that allowed anyone to map Pokemon around them.
The other day, a new app update was released. Instead of fixing the footprints, they were removed entirely, making the breakage the new normal. Also, the cheat sites were sent cease-and-desists, and most/all complied. Finally, some unlucky people have had all their progress erased by a bug. Reddit organized a campaign to demand refunds from Apple/Google for in-game purchases, and complain to Google about Niantic not reading their customer-support email, which breaks the Play Store's TOS.
I think that about covers it.