The existence of for-profit servers in the Fediverse does not ruin the Fediverse (though I wouldn't personally use one of them). The fact that multiple neo-Nazi groups run their own Mastodon servers does not ruin the Fediverse (though I certainly won't use their servers). Not even the fact that Donald Trump's Truth Social is a Mastodon server does anything to ruin the Fediverse (not using that one, either).
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