@polotek only thing I'd say in response is, it's not so easy to make your own instance. It requires some time, learning, and money. Not everybody has those resources to spend on social media.
And if your admin has to block an instance to opt out all of their users, it's not a default.
Now, was every bit of this dogpile on the guy necessary? Probably not. But was it necessary to force everyone to yell at their admin/move instances and therefore risk losing connections/make their own server just so the bridge would have more users by default? Definitely not.