I think questions that ask "Is ____ viable in playthroughs?" Or "Is ____ good enough to defeat ____ in playthroughs?" should not be allowed under Rule 1.4
Let's be real here, you can defeat just about any boss or character in Pokemon with a fair team. We often get questions on this site asking if the poster's Pokemon is "good enough" to be usable in a playthrough, and in the large majority of the time, nearly any Pokemon is fine in any case as long as it's at a reasonable level.
So I believe that questions asking about these kinds of situations shouldn't be allowed. It's hard to get a clear and correct answer to most of these questions, and I believe that the answer to nearly all of them are relatively the same.