Currently, we have two separate tags for The Elder Scrolls V: Skyrim, one for the original edition (the-elder-scrolls-v-skyrim) and another for the Special Edition (skyrim-special-edition). I was initially planning on making this a discussion post to ask how should we tag the Special Edition, but have found out that this has already been discussed back in 2016: 'Skyrim Special Edition' question handling.
EDIT: I've looked at all the questions currently tagged skyrim-special-edition. It seems that the questions either already mention that they are about the Special Edition, or are about an issue that is also in the original edition*. It should now be fine to merge the tags.