New world or old, giving the flower pig poop still yields coins, even though update 290499 says it doesn't. Also, they still say to the character "Do you have poop for coins?" Not sure if they continue to poop a lot.
Steps to Reproduce
Update game. Make new world. Go to flower pig with poop. Get money.
Update game. Make new world. Go to flower pig with poop. Get money.
A developer has marked this issue as fixed. This means that the issue has been addressed in the current development build and will likely be in the next update.