UPDATE 2: Most of you agreed about the key point of showing clearly the money or revenue.

I've been thinking about it. I agree revenue it is a very interesting data to show but I see a potential big problem: keeping this money amount up-to-date.

So personally I'd try to avoid displaying volatile data (like revenue) unless I have a mechanisms in place to update it regularly. Otherwise the info could not be accurate after some weeks of the publication.

That's why I prefer linking to their revenue boards, so it's up to the startup/founder to keep them updated. What do you think?