Yes, you read that right. This is one reason:

Despite years of precedent, a judge in New York has found that embedding a tweet can be copyright infringement. If this stands, it could endanger something Internet users rely on every dayhttps://t.co/Lgw3rTI55O

— EFF (@EFF) February 17, 2018

And this is another:

Federal judge rules that embedded tweets can represent copyright infringement https://t.co/fZU13oZyK9 by @anthonyha

— TechCrunch (@TechCrunch) February 16, 2018

This post may be copyright infringement, simply because it embeds those two tweets. Says who? A federal court in New York. This can be as bad as arguing that deep linking is wrong, and should be illegal. Because it is much, MUCH more likely to work as a censorship tool, than to reward and stimulate creativity. To know more, read the reports and comments by the Electronic Frontier Foundation and TechCrunch.