[APPROVED] Tag update: Remove pokemon_trainer from all posts

BUR #2108 has been approved by @Hillside_Moose.

mass update pokemon_trainer -> -pokemon_trainer

Reason: As discussed on Discord today, almost all human characters from Pokémon are trainers.

Trainers from Pokémon games / manga / anime include: main characters, rivals, Gym Leaders, Elite Four members, Champions, Trial Captains from Alola, various Trainer classes, members of villainous teams, lots of one-time characters, etc.

Some non-trainers would be the researchers, some family members, a few Pokémon Rangers, and a few other characters. They are a minority of the current 62k+ pokemon posts.

There are also 9332 posts tagged pokemon no_humans (obviously the posts where a Pokémon appears without humans, so there are no trainers seen). They are still a minority, but they can be easily avoidable by a search pokemon -no_humans.

EDIT: This bulk update request is pending automatic rejection in 5 days.

EDIT: The bulk update request #2108 (forum #159761) has been approved by @Hillside_Moose.

I've never understood the point of this tag. The only argument I've ever seen in favor of it is, "It makes it easy to find pictures of teams or battles" (forum #71333) which is obsolete anyway as we have pokemon_battle as well as tags for the various teams nowadays. Besides, most of the posts under this tag are just individual poses and pinups, so it isn't even that useful for its intended purpose.

This bulk update request is pending automatic rejection in 5 days.

The bulk update request #2108 (forum #159761) has been approved by @Hillside_Moose.

It might be too late, but i think it could have actually been useful in some posts. For example, in post #3667206 you can't exactly discern the character, so the character tag for it will remain empty, but you can safely say that it's a pokemon trainer.