Extralightweight mode for specific use cases
Could a "mat2 --only-strip-user-identifiers" option be introduced that preserves some functionality and information that some users might want to keep: creation and last redaction date, the ability to continue using the track changes function. To keep the interface easy, it could be termed "-LL" "--extralightweight" or "-k" "--keep-essential-metadata".
The background is a discussion about use cases for MAT2 in archives, where anonymisation of records is sometimes necessary, but also preservation of material features of these records is a goal: #1 (closed) As after five or more years the technical context (the concrete machine and data context) that could lead to identification does (probably) not exist anymore, preservation of basic functionality (RSID tags) and metadata that places the record historically (creation, last modified) becomes a valuable and legitimate resource for historical research (see "Good" reasons: https://33bits.wordpress.com).