Is there any valid reason to install Tigerbrew (Homebrew) on a modern Mac OS?

Perhaps you may be thinking that I'm asking why one *should* install Tigerbrew on their older PowerPC/Intel mac machine running Tiger or Leopard operating systems. But I'm actually wondering if there's any reason to install it onto a modern Intel mac machine. I'm running a Macbook Pro 2012 with El Capitan 10.11.6, and for some reason which I do not understand, when I type the command man brew in Terminal.app, I find the following:

Tigerbrew  is  the  easiest  and  most flexible way to install the UNIX
       tools Apple didn't include with OS X.

Is there any reason why I would have Tigerbrew and not regular Homebrew? Did I download this in error?

I'm more inclined to think that I was just curious and had no reason, rather than something less likely, like I was hacked...somehow?