Sometimes I find a question that seems interesting and for some reasons I may want to follow it even though no one tag me or comment my answer (if any).
I can have different reasons for that:
- from strictly personal like being busy at the moment
- waiting for a clarification by the OP (say when a reproducible example is requested in comments)
- being curious to see other answers then mine.
So, I was thinking to something like the "favourite question" star but with temporary effect (users can choose among 1h/1day/1week) and enabling notification as I were tagged via