Thank you for this!
As for parsing out who belongs in what thread, I don't think it's that hard, to be honest. I think most people are going by "level of fame" - Pewdiepie might be more well-known than Beau Mirchoff. However, it seems much easier when you look at it from the angle of HOW we know them. Will Smith has a youtube channel, but that's not what anyone knows him from. Shane Dawson might have technically been in a movie or two, but is clearly a social media influencer. Someone like Troye Sivan could potentially be in both spots, (though I would honestly just put him in celeb at this point), but I think looking at HOW they're known is the key.
Anyway, thank you again! It's hard to keep up with actual men I might know about when sorting through pages of OF content.