"Kaijuu" vs "Giant monster" tags

There are two tags that right now are used for the same thing; Kaijuu and Giant monster.

It seems like "kaijuu" tag was originally meant to be used for Japanese giant monster media (Godzilla, Ultra Series, Gamera, etc.), while "giant monster" was meant to be used for any big monster that's not a kaiju. But over time these two tags were interchangeably used and even used together in the same post. Since "kaiju" is now a byword for "giant monster", I think having these two tags being separate is now functionally redundant. Since the tag "giant monster" implicates giant, but "kaijuu" is not for some reason.

My suggestion is to merge them into a single tag, so that it won't be as confusing as it is right now, though there will be a problem of how to tag post that show a kaiju character as being smaller than normal (like around the human size).

As a sidenote, I think we also should get rid of the "long vowel" form of "kaijuu" tag and switched it into the shorter form (kaiju), since it is much more widely used, and even the wiki uses the short vowel in it.

I'm still not sure how to deal with these tags, however, so I guess I wanna hear your opinion before making a BUR.

I'll summarize what I said on the discord to start this discussion. I approve of using the more common shorter "kaiju" form. My opinion on the two tags is that they should serve different purposes and should both be used, however the current standard is far from ideal and far from what I would like. I propose:

A giant monster should be any monster of any origin that is giant. An image with this tag should show a full size, giant, living monster. For example, any posts with a full-size bile titan like post #7325454.

A Kaiju(u) should be any Japanese giant-monster-type character such as the ones you listed (Ultra Monsters, Godzilla, Gamera, etc). These tags should apply no matter how such a character is portrayed in a particular image, be they full size living monsters or figures/plushies such as in post #6694925.

I'm not really sure if this is in keeping with any other previous decisions, but it's what I'd suggest for these particular tags. Whatever the consensus is I believe these two tags are a result of some oldbooru era decisions that don't really hold up with how the tags are or should be used today.

Previous topic #23361

BUR #26755 has been approved by @nonamethanks.

create alias kaijuu -> kaiju

The short phonetic spelling of "kaijuu" tag as "kaiju" is much more popular and in widespread uses, so I don't see why Danbooru has to be an outlier and kept the rarely used "uu" spelling of the word. Heck, even wiki page and Wikipedia used "kaiju" spelling.

You don't need to remove an alias first if you just want to reverse it.

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

The bulk update request #26755 (forum #282773) has been approved by @nonamethanks.