You are all talking crazy talk.
Here is a photograph of how bananas should look when they are ripe. This is when they are at their tastiest.
Bananas580-1.jpg
If the banana is all yellow it is not ripe. If it still has green bits it is definitely not ripe.
Unripe bananas are more acidic and harder to digest. You are missing out on the nutritional benefits too. Sort it out, losers.