Critics complain that Twitter will have the ability to embed tweets and content from their site. This allows them to give the tweets to outlets who want to use them for any purpose, without the creator's permission.
No one is 'forced' to use twitter for anything. Is free service ultimately. If you want to be protective of personal content, don't use it.— Chrissy Kinsella (@chrissykinsella) September 2, 2017
You know what this covers? Retweeting. It's not a sinister plot to take your precious IP, but basically allows twitter to operate.— NoiseTheorem (@noisetheorem) September 2, 2017
Know what else it covered? Taking your Pulitzer prize winning news photo and Twitter reselling it to MSNBC and Fox. You get zip— Jeff Hayward (@cycloid) September 2, 2017
Many people, especially writers, use it as a promotional/networking too and they post things like excerpts and art.— Shara Godwinson (@sharagodwinson) September 3, 2017
It turns out companies have always been able to embed tweets without the author's permission, because they are considered fair use.