But for some niches, there is also the problem of having to deal with a lot of useless remarks. For example, say a site with celebrity picture galleries. Most of the user remarks aren't worthy of approval and the site owner wasn't approving them for years. But with panda, he had started approving all user comments (including the old unapproved ones) even if they don't add value. eg: "beautiful". It is at-least an acknowledgement of user's interest.It is being done recently and so the effect is not known yet.