It's not that Twitter stopped people from posting. It's that Twitter did that at the behest of the government. That is a clear violation of the First Amendment.
The government can ask private companies not to publish things, it does that for "national security" all the time. The company can tell them to pound sound - that's been well established. https://www.washingtonpost.com/news/the-fix/wp/2017/05/16/wh... for example. But there's nothing illegal (and most certainly not 30 year prison sentence illegal) about the government saying "hey could you review these tweets please"?
Do we know what they contained? Were they threats? Spam? Copyright infringing? Disagreements about tax policy?
It's called "soft power," and the use of "review" in those messages is clearly meaning something more than that. Otherwise, the government would not have suggested anything at all.
It’s clearly illegal, it’s conspiracy to defraud the United States.
United States citizens have explicit rights, and corporate employees colluding with government officials to “voluntarily” nullify those rights are guilty of conspiracy to defraud the United States
The government represents us, a collusion to defeat our rights is conspiracy against us and subject to civil and criminal action
> It's that Twitter did that at the behest of the government.
Could you describe the government at the time this action was taken? What relationship did the people asking Twitter to do things with the government? Did the people making the requests have any authority to direct any department of the Federal Government to take any action?
Rogue elements of the FBI colluded with private corporations and elements of the Democratic Party to defraud US citizens of their fundamental rights for the benefit of their preferred political candidate.
They committed conspiracy to defraud the United States, and will in due time be charged as such by the Department of Justice.
Do we know what they contained? Were they threats? Spam? Copyright infringing? Disagreements about tax policy?