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#2: Post edited
Basically the title. When sorting answers by "Activity" (what the button says), it actually sorts by age. (It even puts `?sort=age` in the URL.) For example, [this post](https://codegolf.codidact.com/questions/279147?sort=age) has [an answer that was edited recently](https://codegolf.codidact.com/questions/279147?sort=age#answer-279163) be near the bottom since it was an old answer.