Second, we have begun to test a product feature to help us
identify suspected abusive Tweets and limit their reach. This
feature takes into account a wide range of signals and context
that frequently correlates with abuse including the age of the
account itself, and the similarity of a Tweet to other content
that our safety team has in the past independently determined to
be abusive. It will not affect your ability to see content that
you’ve explicitly sought out, such as Tweets from accounts you
follow, but instead is designed to help us limit the potential
harm of abusive content.
Something about Twitter brings out the absolute worst in some people. There’s a pattern to it, though, which has long made me suspect it could be addressed at least partially through spam-filter-like algorithms. Good changes to their policies on harassment too.