When we started using Kickstarter to help develop our games, there weren't many solutions available to allow backers to manage their rewards and keep us up to date. We had to make our own web sites to do this.
Over time, many third-party solutions, such as CrowdOx and BackerKit, have become available. In order to provide backers with a more consistent, familiar and easier experience, we've decided to use CrowdOx for our future titles, including The Bard's Tale IV and Wasteland 3.
As Wasteland 2 and Torment: Tides of Numenera have already been released, they will not be migrating to CrowdOx, and the old backer web sites will remain available for the foreseeable future.