I know it seems dumb to ask, but how would you go about that?
When I get a comment of someone liking my work I say "Thanks!"
For a comment on feedback I explain myself and take the advice.
But if I get a comment like "Oh boy! I bet X must've ... haven't they? lol" or "Are they gonna...?" I don't know how to respond.
I don't want to ignore them, but I don't want to possibly spoil them either, nor do I wanna keep saying "Maybe..." or something similar. Don't get me wrong, I really like those types of comments since they show that they are invested in the story
Edit: Thanks everyone! (don't know if anyone will see this). Most of you agree it's a good idea to comment with a maybe or hint. I think I'll go with that!