Maybe the bot point is true, I don't know. Sure a ton of your old friends still post on FB, it's still very popular. But I'm sure a ton don't. They still coun

Maybe the bot point is true, I don't know. Sure a ton of your old friends still post on FB, it's still very popular. But I'm sure a ton don't. They still count in the follower count of anyone they followed. And the ones who still post on FB have had a decade of following things but still only have one person's worth of attention; they're not engaging everyone they followed. A new Mastodon follower, by comparison, is very likely to still be logging in and engaging with you, given they just chose to engage with you by logging in and following. And they don't have 10 years worth of other accounts they've followed vying for their attention on that platform.