> Use of the word "Python" in the names of freely distributed products like IronPython, wxPython, Python Extensions, etc. -- Allowed when referring to use with or suitability for the Python programming language.
We can quibble about whether a Python 2 fork would technically meet the definition here, but it seems to me that it would meet it at least as much as IronPython does; going after such a fork would contradict the rule implied by the examples in this section, even if it doesn't unambiguously violate the definition. I think they've already granted the public the right to use the word "Python" in a Python 2 fork and couldn't successfully sue over it now even if they wanted to.
What's your basis for suggesting that they've threatened to do so?