A few recent examples of spoilers in question titles:
What happened to Obi-Wan's lightsaber after he was killed by Darth Vader?
(Obi-Wan dies and Darth Vader was involved with his death)
What is the significance of Batman and Batgirl's sex scene in Batman: The Killing Joke?
(Batman and Batgirl have sex. Since the scene wasn't in the comics, it's even a spoiler for people who know the source material)
Why did Biggles die?
Significance of Enchantress entry in the file given by Amanda to Bruce in Suicide Squad mid-credit scene
(Reveals what the end-credit scene is)
I don't watch Game of Thrones, but so many of these titles seem to give away the death of characters or plot points.
I do watch the Arrowverse shows, so I can say these question titles definitely contain spoilers:
There are more examples than I'm listing here, which makes me wonder, what does the community think about the handling of spoilers in question titles? Is it okay as it it, or should we be more vigilant?