Rnews is the brainchild of Adrian Rollett, and is the product of his hard work over the years. He couldn't find a program to do server-side feed aggregation the way he wanted, so—in the fine tradition of open-source software—he wrote his own and made it available to the community.
Recently, Anthony Wood joined development, focusing on restructuring the code for new features, adding security and AJAX. If something is broken in Rnews that used to work, it's probably his fault!
Bug reports/fixes and ideas have been submitted by many others—thanks for making Rnews better.