If I'm on a Lemmy instance, I can't find any Kbin.social magazines or users. Why is that?

If I'm on a Lemmy instance, I can't find any Kbin.social magazines or users. Why is that?

For example, if I search for myself on lemmy.world, such as !hamswagwich@kbin.social, or @hamswagwich, or hamswagwich@kbin.social it's not found.

Same for Kbin.social magazines, for example, searching for !TeslaMotors@kbin.social brings up nothing. Same with other lemmy instances. Why is that?

#kbinMeta