Alias dreamcore -> weirdcore

BUR #58269 is pending approval.

mass update dreamcore -weirdcore -> -dreamcore
create alias dreamcore -> weirdcore

I've got no idea who populated this tag (I do now) and why, but it's functionally just being used as another weirdcore, and all the posts tagged dreamcore but not weirdcore are simply liminal spaces.

I can't find any meaningful definition that distinguishes the two beyond "dreamcore is lighter" online (and even then the imagery used as examples tends to be pretty much the same with only minor differences), and they're clearly being used the same way here. I don't see any use for this tag at all, it's just redundant.

Yeah, I'm like...90% sure most people don't really care if there is any distinction between the two. There's no point in having two tags for basically the same thing.

Sidenote: I learned of a new tag today. Good to know, as I have upped weirdcore images without knowing that was the tag!