This is a massive step by Twitter. If implemented across the board, it could largely shut down many denialist accounts

Some generic responses for all the people replying:

- Twitter is a private company. They do not owe you the right to their platform to spread misinformation
- This is preventing lies about one, specific thing, you can still lie about other things

- if this makes you want to leave Twitter, it makes no sense to reply to this tweet - deleting your account is a much more logical step

- if you are so wildly ignorant of Nazi Germany that you think this comes close to that regime, I recommend doing some basic reading. Perhaps follow @AuschwitzMuseum
- this XKCD comic

- as to deleting your account: QT/replies directly feed into Twitter's algorithm and ultimately make money for the company. If you don't want to be part of that, the only measure that the company will actually care about is lost revenue, so deleting your account is logical