Shaken is a status effect for Savage Worlds that creates a lot of confusion. We have 5 questions so far that explicitly cover it in some form, and others that mention it in passing.
I created a shaken tag for it as the use of it in game gets a lot of people confused and I know it would be helpful to be able to search for all the questions covering clarifications as to how and when to use it. However, another user has gone through and removed the tag from all of the questions I added it to.
Based on the answer from @BESW and various comments in chat, I believe there is a strong case for the tag's creation and use. There is precedent with other status effects having tags, e.g. grapple, hit-points, and the fact that Shaken is used across a number of systems strengthens the argument for the tag. The fact that the tag use in SE is supposed to be emergent is another strong point.
I feel very strongly this tag is useful, and given that tag use is supposed to be organic and grow naturally, I don't understand why the other user acted in the way they did.