We certainly don't claim to apply the rule correctly all the time. We are, however, happy to be corrected. The best way to complain about a title on HN is to suggest a better one.
I haven't been keeping a list, unfortunately. I mostly become aware of it when a poster mentions that their original title was changed from <something descriptive> to <something else>. Is there a way to direct that to someone who can do something about it without coming off as a pest?