BUR #26852 has been approved by @nonamethanks.
deprecate light
deprecate lights
For some reason, there are two separate tag for any lighting; light and lights. Both tags' wiki are basically ambiguous pages listed all kind of light sources and even suggest the user to tag them by where the light came from instead.
Given the redundancy of these tags, and that both tags existing is basically encouraging people to just tag either (or both) of these tags if they just saw some light in the post, evident by the whopping 14k and 2.8k posts with either of these tags, respectively. I suggest we should deprecate and nuke both tags, and kept the wiki page as an ambiguous tag page.
Updated