Not if it is intended purely as a question. It is true that the phrase "what's stopping them?" could be interpreted as an incitement, but this is Hacker News not one of the grubbier corners of the internet, and the first interpretation is surely the correct one.
Yes, it does.
And yet, that comment is upvoted and your comment is downvoted.
Maybe I don't want to become a part of this community after all.
edit: then again, every single comment of yours appears to be dead?