We realized that there is a lack of standardization in the taps. One example would be the selection of fields which finally get processed by the target later on. The Meltano SDK proposes this as a standard but a lot of taps actually don’t have this behavior. When trying to fix this behavior in the source taps you hardly have a chance to get it merged since what Meltano proposes as standard is not a recognized standard (e.g. this PR https://github.com/singer-io/tap-stripe/pull/96#issuecomment-920301058)