We had some discussions previously that questions from outside theory are be welcome on this site (to a reasonable extent). We have a tag for modeling: formal-modeling. I think it would be nice to have one for applications also, but don't know what to name it. I first created [application] but then changed it to application-of-theory. Another possibility is [theory-in-practice].
Should we have a tag for questions about applications of theory?
If positive, what should be its name? And which questions should be tagged using it?
I do not mind the existence of the tag although I do not see a compelling reason why we need that tag. It is not always clear whether a question belongs to “application” or not, and I will not try hard to decide one way or the other.