On most social media, you have to constantly expend effort to maintain an audience and customers. It's hard work. You have to constantly create something new, which is why it's called "content creation".

On Nostr, you can just have one post go viral, because some gigantic npub boosted it, and then you get so many followers that you never have to post anything interesting ever again. And if you get added to a "recommended" list, that is doubled-down upon because everyone new also follows you.

You can just post "GM" every day, forever, and stay at the top of the list.

Someone arriving later, making much more effort, doesn't have a statistically-relevant chance of ever being in the same position, unless they are known from someplace else.