To be honest, I am not sure this is correct. But it might be. I should know since I have written it, but I honestly can't remember. There was a plan that users with a paid membership would always see max 1 day old, but I am not sure it actually works like that.
The Profile stats are waiting for a rewrite. The looks will be the same, it's just a rewrite of the rendering process. As it is today, it is extremely expensive in hardware to handle this, and there are ways we can improve on that front. So regardless how it is today, it might change. But we will keep the method that paying members gets theirs refreshed daily, and others weekly. We might also add a daily manual refresh for paying, and a weekly for non paying. But that is not yet determined.