YouTube Puts Tags Into Private Mode

Strangly enough, the official YouTube Creators account tweeted out hours ago that they would be pulling tags from the public as they were abused by some.  They also suggest people keep uploading their content.

How will this effect the site and how things are found in searches?

More info:

http://newmediarockstars.com/2012/08/breaking-news-youtube-disables-tags-to-the-public/