When asking a question the title text-box has the instruction and there are some guidelines on how to write a good title in the How to ask a good question meta-thread.
In my mind Function “Love Triangle” is one of the atrociously bad titles because it does not tell anything about the question being asked. I wouldn't very far-fetched to say that this clickbait title was selected to get HNQ rep. Needless to say, I was very disappointed to find out that there is nothing about "love" in the question rather it was about boring function compositions.
Why this title is still up? Is this a valid title?