Seeing many people have their Twitter accounts suspended,
there's no need to speculate on the specific reasons. Twitter's rules are a black box; nobody knows the real story.
These foreign companies are extremely autocratic, including but not limited to Coinbase, Twitter, Amazon, Walmart… Freezing accounts, suspending accounts, confiscating payments—it's commonplace.
By the way, never use platforms like Coinbase or Bitfinex.
They might freeze your account simply because you used a VPN, followed by lengthy email communications. Don't expect it to be unfrozen in less than a month.
If you're impatient, it could give you a heart attack.
As someone who's been dealing with Coinbase since 2016, I know all too well what these white-owned companies are like.
Compared to these foreign exchanges, Chinese exchanges like Binance offer incredibly good service. Whether it's good or bad is relative.
Attached is a record of my month-long email communication with Coinbase in 2016. 👋👋👋