Wasn't aware that there was any forum software that would let you download files without being a registered user. If that's too burdensome, we provided an email address to which you could request that a copy of the code be emailed to you. After that, you can post the GPL2 code anywhere you like. However, during initial development, we prefer to limit downloads to those actively participating in the testing and refinement of the code... if you consider restricting downloads to 10,000+ users a limitation. As indicated, anyone is more than welcome and, in fact, encouraged to register and participate in that process. It's kinda what open source development is all about.
As soon as the early bugs are shaken out of the code (typically about a week), we will publish an article on Nerd Vittles with a download link that requires no registration.
As for your code snippet, I would be reluctant to use SQLite 3 to directly modify AstDB while it is in use by Asterisk. That is asking for serious problems and, in fact, you will typically get locking errors in the process. I think you'll find the approach used in our code to be safer and more reliable. It relies upon Asterisk to both delete and populate the blacklist. Reading from AstDB using SQLite 3 is safe. Physically modifying the contents of AstDB using SQLite 3 is not IMHO.