Nathaniel, thanks for chiming in. It is great to hear from the author of PEP 13 
Like you, I completely support both PEP 13 and the Code of Conduct.
We do disagree on implementation. It seems that the emphasis has shifted away from being welcoming and more towards kicking people out. The frequency of events is higher than expected. Instead of protecting the powerless, the reports so far have mostly come from current or aspiring SC members. And soliciting microaggression reports seems like a recipe for exclusion – we should be more about tolerance of each other’s foibles, temperaments, and communication styles. Already, I’ve had a report from a senior developer that they are contributing less because of worries about CoC reports.
Frankly, I’ve been concerned for a long time. The first CoC action I observed was where a sitting SC member and CoC WG member ejected a participant from our forums for being “distracting”. The person habitually posted lists of bullet points rather than prose. They were “warned” about this, but it was an intrinsic trait they couldn’t change. Research into the person’s internet presence revealed that this was their only communication style. While this person was annoying, the original intent of the diversity statement was to protect people who are neurodiverse. Instead, it was used as weapon against them by a powerful person who was simply irritated. This was pointed out on the list, but no retraction was forthcoming. The participant has never been heard from again.
When you published an essay taking down the creator of the Requests module, I didn’t think it lived up to the spirit of the diversity statement. Historically, we never treated each other this way. Deserved or not, it must have been devastating for the target of that post. You were fully within your rights to make the post (protected political speech), but I became concerned when you told me that elected Python officials had green-lighted the post.
I have huge respect for you and it is okay that we disagree about whether creating a welcoming environment should revolve around non-permissive and aggressive CoC enforcement or whether we want to aspire towards de-escalation and mutable tolerance, saving the big hammer only for the egregious and on-going cases.