It's a win for everyone but if that effort to attract thousands just gets downvoted because "too much", we'd never be able to attract another one who then attracts thousands more.

You're talking about a big name on Hive. Big names rarely become big names by posting valueless crap. So, odds are a big name who brings thousands of his or her followers along with him/her will most likely post the kind of interesting and engaging content that won't be downvoted too much and will most likely be rewarded well. And if it does get downvoted to some extent, so what? The rewards are going to be quite large if experience is any guide. Remember when one big YouTuber came to Steem in early 2018? His name was Pete something. He instantly earned hundreds of dollars per post each containing one of his YouTube videos. He eventually left but that certainly wasn't because of any downvotes. He was the sort of content creator whose videos got millions of views on the regular. I doubt very much too many of his followers found their way here. Onboarding still needs to be improved.