BUR #4865 has been approved by @Hillside_Moose.
create alias sonic_the_hedgehog -> sonic_(series)
A large amount of the Sonic characters have names that follow the format "x the y" - for example, Blaze the Cat, Knuckles the Echidna and Rouge the Bat. Sonic the Hedgehog is one of them, but on Danbooru his character tag is just Sonic. Instead, we use Sonic the Hedgehog for the series' copyright tag.
I'd like to change this with a couple of standardization updates. We should use sonic_the_hedgehog as the character tag to be in line with the other Sonic character tags, and we should use sonic_(series) as the copyright tag to be in line with other parent copyright tags such as fate_(series). This would be accomplished with the already proposed BUR and a secondary BUR:
remove alias sonic_the_hedgehog -> sonic_(series)
create alias sonic -> sonic_the_hedgehog
I will submit this second BUR if the first one is approved.