Trying adding "ass", it explodes [1]. Not sure if that's because of keywords such as 'class' or something else? "dumb" is really on the uptake [2].
[1] https://www.vidarholen.net/contents/wordcount/#fuck*,shit*,d...*
[2] https://www.vidarholen.net/contents/wordcount/#fuck*,shit*,d...*
Report: Adding ass makes stuff explode. Dumb is on the uptake.
Resolution: Behaving as expected. Won't fix.
Assembly, assign, assert, assume, associate... I think most of what you're picking up is not actually naughty.