[eberkund]

Why do you think a bug is a "simpler" explanation for this behaviour? Maybe if all links were broken then sure, but if only specific sites that operate against the interests of Twitter stop working doesn't that point to something else going on?

[tehlike]

An algorithm may have incorrectly marked a site as malicious, or crawling might be failing because of an malformed http header etc. Who knows...

When there is feedback loops involved (in the context of an integrity system, for example), it doesn't outright block everything. In the past work i had our systems blocked some publishers traffic wrongfully, while not blocking others when it should(i was in display ads).

[coryrc]

Because Mastodon is not actually a threat.