Not only does Joy describe Bibframe by using the ontology of Tutu, but she probably currently knows the most about data migrations to Koha. This would be neat in itself, but she never hesitates to share this knowledge by answering questions on the mailing lists, attending and speaking at Kohacons, and participating on IRC.
Joy is a person of great integrity and she brings that to her work on Koha. The community and the project are lucky to have her.