It reduces the value of communication to statements graded by “likes” or being “ratioed,” and other mechanisms that don’t reflect real human response or quality of thought.
It makes it difficult to ascertain the truth about the many difficult topics with which we all wrestle. We have replaced earnest truth-seeking with trial by retweet. Meanwhile, those who make consequential decisions such as issues involving impeachment, Covid and election fraud, often do so based on assertions that are difficult to confirm or deny.
It has politicized communication to an unhealthy level, widened divisions rather than bridge them, and fed the temptation to call for censorship of views we find disagreeable.