So I just found a question in which the accepted answer is only about an advertisement to an app that solves the problem. No offense to anyone, but isn't it too subjective? If the problem can't be solved without app, in my opinion, they should've just say something like:
Sorry, this problem cannot be solved without an extension or external app.
In my opinion, advertising in an answer is against the antitrust law, because accepted answers are always on top AND there is only one seat for an accepted answer.
Why wasn't this answer moderated?