Today’s topic is more like an academic exercise than a production use case, but there are a lot of learnings along the way and I think it’s worth the effort.
The other day I saw a tweet by Igor Cotruta that talked about «text fingerprinting». The idea is embedding the user id in invisible characters so that if the exported data get’s eventually leaked it can be traced back to whoever exported it. Looks like stuff from a spy movie, so I was quickly on-board in the attempt to reproduce that with Power BI with a Calc Group.