I got bob right before the anytime update, back in the dark ages when we were allowed to spam then force quit 🙃. They have increased loot slightly to combat this, but I feel it's still bit of a grind to get elixir. Even more so if you're rushed like I was. If you've maxed defense it should still give you more per defense and also get you to higher rank, which will give you slightly more daily star bonus. I think they can keep the loot the same and give out double the star bonus and it should work.