Thanks for bringing this up. We don’t have this feature at the moment but our development team will be working on functionality to make this step easier. I’m not certain that we will be able to delete some data, such as transactions, but we are looking at the possibility of anonymizing personally identifiable records.
We just don’t think it’s a good idea to completely delete transaction data because these records are important for accounting and tax purposes. Therefore, we feel that anonymizing this type of data should help to keep personal data secure, while continuing to provide the site admin or organization with the data it needs.