I think this is private property and the rule here is the topic of a stock board is the stock, not the people who participate on the board. If and when a user self-discloses their identity which identifies them as a public figure or someone otherwise associated with the company then they could be valid topic of discussion.
For example, if someone were to post a content or a link, non-authoritative or otherwise, that purported to identify you as, say, Bernie Madoff, that would be both off-topic and a violation of privacy, unless you had yourself identified yourself to be Bernie. It too will be removed and the poster would be subject to administrative sanctions for violating the rules of this site.