Excluded tags will only effect posts made after the settings were applied, so we won't see any new posts in those tags anymore.

But no, we are not a pure crowdfunding tribe, steem already has pure crowdfunding on a beautiful front end. We made the decision to do "social crowdfunding", a social layer over top of a crowdfunding core. Crowdfunds, projects and charity posts will receive higher upvotes than most posting in general content.

As more projects and crowdfunds come in they will find their way to trending or near the top of promoted, and the general posting users will then have more UFM power available from posting that they can support these projects.