I suggest to delete math.stackexchange.com/a/1864033/42969: The answer is wrong (admitted by its author), was not fixed, and a better answer to to a duplicate question exists.
@amWhy I think what @TheAmplitwist wanted to point out is that now, as the question has no answer with positive score anymore, Roomba will delete the whole thread automatically.
@bobeyt6 Just please be careful to live by the quality standards you seek to enforce, okay? I get the temptation, but the credibility of actions taken in this room, depends on the credibility of the active users contributing here. That's all. Welcome!
Hi Savannah. Until you can join chat, @user1322490 (Savannah), I know you need reputation to participate in chat rooms. I see you joined math.se just today. Good luck!