They will grow, and not in a good way. These are automated requests, and RIAA and the others don't really care if a percentage of them are not correct. The problem is that if your site was in these lists, and you actually have a fair use, your complaint will be manually processed - so it will take a lot of time.

BTW, the site list[1] looks like a great index for file sharing sites; somehow it defeats the purpose.

[1] http://www.google.com/transparencyreport/removals/copyright/...