This was brought up by a comment I received on an old answer of mine, regarding this question from 4 years ago.
Until yesterday, the question asked if/why a robot could even perform the function required to take a home pregnancy test. I remember this quite well, as it was a difficult question to answer within the guidelines of the site, and I was quite proud of my eventual ability to keep my answer clean and civil.
Yesterday, the question was edited twice. The edits eliminated a few spoiler boxes and substantially streamlined the text (which is good) but also changed the core question asked in the test from 'How could a robot take a home pregnancy test' to 'How could a robot get a positive result on a home pregnancy test'.
The editor of the question then provided their own answer, which completely ignored the original question of 'why would a robot be able to urinate' and instead answered the new question of 'how could a robot get a positive pregnancy test result'.
Obviously, making a question easier to read is a good thing, but what about the remaining actions - is it a good thing for people to edit a question in order to make an accepted answer a poor fit, so they can provide their own answer?