Since when is the Atlanta Journal-Constitution a host of "scam" links? Alfalfa linked to an article with vastly more practical advice than yours, and tends to do that sort of good deed often.
The described repository is doing the same damned thing as your idea to "report it to your wireless provider", except pooling examples of SMS spam in a central database. That way the problem can be studied as a whole to improve countermeasures. The FTC had the same idea when in 1998 it opened an email address for collection of emailed spam. (originally "
[email protected]", replaced a few years later with "
[email protected]")
Cloudmark explains the service here:
http://www.cloudmark.com/en/products/gsma-spam-reporting-service/index