IMO he has a negative effect on the Python community. When he asks a question, he doesn't try to understand how Python is designed and let people think that the Python design just sucks (which is wrong, Python design is great! Python is the best language!).
Out of curiousity, I googled Anatoly and python-ideas and this thread[1] seems a useful example. His suggestions seem intended to help, he provided some code examples, and made only a handful of posts in support of his idea (receiving a few negative responses). At times his English was rough, but without going into the merits of his ideas - would an approach where you encourage him to publish his ideas on PyPI or Github give him an outlet for his energy?
It seems to me his philosophy clashes with that of python-dev, perhaps his batteries are a different size than those included in Python, but I'd like to see this community be inclusive rather than exclusive, even at the expense of a few added mail filters by the core team.
My-two-cents'ly,
John.