[EveningStar]

Yes. It's an old typo.

Can anyone tell me what a nirther is?

Charles at LGF uses Nirther. Others, like me, prefer Birther.

[Bean Counter]

I kinda favor Nirther myself...it’s right up there with “Troofer”...as in “911 Troofer”, “Global Warming/Climate Change Troofer”, etc...