sun-dried_tomato said:
BUR #50314 has been rejected.
mass update hoshimachi_suisei comet -> object_namesake
hoshimachi_suisei comet yields 7 pages of posts, but hoshimachi_suisei object_namesake yields only 3 posts. As her name is confirmed to mean comet (not Mercury) by being written 彗星 in Chinese, depictions of her with comets should be tagged object_namesake.
Did you check to make sure there weren't any cases in which the comet's presence is unrelated to Suisei being in the image? For example, being in a group with other VTubers or being in a completely separate image in a collage?
BURs for things like this are generally not a good idea because there might be cases like those. You'd need to check to see if it actually applies to all of the current posts, and even then, there's the possibility someone could upload an image that doesn't fit before the BUR is passed.