>Literally 90% of what I could find was furry porn and rage-bait.
I feel like this is a recognizable genre of comment. I consider myself a big time Mastodon supporter and am proud to be an evangelist for it. One thing you would see in HN comment threads were these first time users claiming all the content was X where X was something very unusual, extreme, and the claims regarding what that extreme thing was would be completely all over the map. They would also be subjective, hard to prove or disprove, but also way out of line with my personal experience and the experience of others who had used Mastodon for anything beyond a trial period.
It looks like we're getting the same version of this type of comment now, except it's for Blue Sky. I've used the app on my phone and computer, followed a few people, followed a handful of discovery feeds. I can't really prove anything here, but I think whether it's Mastodon, whether it's Blue Sky, whether it's Lemmy, I feel like the most outrageous and unreliable comments have tended to be the genre of "skeptical new user sharing their first impression" style comments, which make broad brush claims as to what "most" of the content is on a given platform.
I'm not even a fan of Blue Sky for numerous reasons I won't get into here, but I've had an account for, perhaps a few months now, but, as I often find myself saying when it comes to new platforms, it is not at all my experience that I'm seeing furry porn and rage bait. If there's any one thing noticeably unique in my experience so far, it's the general lowered temperature you feel in your feed compared to Twitter.