Twitter and the social media platform Discord have various policies that might have prompted them to remove the leaked Pentagon documents that Biden administration officials say revealed key information about U.S. intelligence gathering operations.But gray areas in those rules and uneven enforcement of them make it unclear how, or even if, executives at those companies would decide to remove them.As of Saturday, Twitter continued to host tweets with the Pentagon’s documents, some of which had been up since at least Wednesday. There is no indication that Elon Musk, who bought Twitter nearly six months ago, will take any action against the tweets with the classified documents.Two days earlier, Mr. Musk seemed to respond sarcastically to a tweet about the leaked material. “Yeah, you can totally delete things from the Internet — that works perfectly and doesn’t draw attention to whatever you were trying to hide at all,” he wrote.On Discord, a messaging platform popular with video game players, the Pentagon documents may have been circulating as early as March. Since Discord chat g …
