hexaz

The restarting is independent from the games performance. Battle times actually eat into the time you have after the battle to update your team, and at some point restarting the game is faster than watching the battle unfold.

Most probably not privacy related, but the result of Blackberry suing Facebook over some patent stuff in Germany. (German source: https://t3n.de/news/whatsapp-kein-chat-export-mehr-1238327/)

You can display ads, just not personalized ones. Might even lead to more static image or text based ads, which have a higher chance of not being blocked by users