It has come to my attention that CPython's source code contains problematic ableist/saneist terms and/or pejoratives, namely

sanity check    144
silly           26
insane          13
crazy           13
stupid          6
lame            2
lunatic         1

Some of those slipped into the documentation. In an attempt to make Python community more inclusive and welcoming, we should clean up these usages and replace them with something neutral (where applicable). Unfortunately, to this day many developers deem such efforts as "trolling", so please note that the precedent has already been set by many major projects. Here're just a few:

https://github.com/unpkg/unpkg.com/pull/81
https://github.com/reduxjs/redux/pull/2335
https://github.com/rtfd/readthedocs.org/pull/3752
https://github.com/krzysztofzablocki/Sourcery/issues/2
https://github.com/google/xi-editor/pull/126

Other resources:

https://english.stackexchange.com/q/282282
http://isthisableism.tumblr.com/sluralternatives

The goal of this issue is not to stir up arguments, but to figure out the alternatives and ways to replace those problematic terms.