He started a forum thread called 'Notch: Wolves Are a Bad Idea', which led to another forum thread challenging the community to come up ideas that were better than wolves, which led, after 5 days of WIP development, to the initial release of the Better Than Wolves mod on April 10, 2011. FlowerChild realized the time Mojang spent to create wolves in Minecraft Beta 1.4 and other features in previous releases could have been spent on something with much more functionality and gameplay value.
FlowerChild created BTW since he felt the full potential of the game was not being realized by Mojang for the amount of time they were putting into it. Better Than Wolves is a Minecraft mod that not only adds new items and blocks, but also provides incredible functionality for engineering and design while maintaining the original feel of Minecraft.