There are some tags- which becomes "catch-all" i.e. they are essentially redundant and can be applied anywhere or they don't quite have very direct classification meaning to the question.
Some of the list is as below:
- algorithms
- frequency
- reference-request
- soft-question
- random : may should be called random-numbers
- terminology
- measurement
- source
- timing
- phase : its a correct term -but a horrible name for tag.
- nomenclature
Should we cleanup some of these tags? and remove them permanently?