The problem with the WFPL is that it may not be legal in many jurisdictions. I would encourage you to dual license with the WTFPL and a more legally vetted license, such as MIT, to allow your software to be used in a wider variety of jurisdictions.
And thank you for writing open source software!
Edit: The CC0 may be a more legally valid license that accomplishes the same thing.
And thank you for writing open source software!
Edit: The CC0 may be a more legally valid license that accomplishes the same thing.