I recently flagged an answer as not an answer because its entire content was something along the lines of
Hint: Consider these two mechanisms. What would happen in case one? What would happen in case two?
It was an answer to a (heavily downvoted and thus no link) homework question. I assume its intention was to nudge the OP towards an answer while not giving away the answer itself.
I was then informed in chat that two mods had had a discussion on whether these hint-type answers should be considered answers or whether they should be considered deletion-worthy as non-answers. This question exists to establish community consensus on whether these should be deleted or stay. Note that a previous meta-discussion also concerned hint-answers — the question whether they are comments or not.