I have seen a few questions relating to or using light speed. These seem to often be tagged with speed and/or light. I would think the speed tag would be better categorised as kinematics/motion sort of questions and light lends itself more to questions about the EM spectrum or visible wavelengths. Should we make a speed-of-light tag to be used for questions more about relativity/quantum/faster than light travel etc.?
Examples: When stars explode why can we still see them?
Is there an objective difference between space expansion and reduction in speed of light