Edwin has pointed out that two German pro-free-speech groups, Agens Die Miteinander and Cuncti (and Tom Todd of Hamburg is usually signed in the e-mail), have launched a petition at Science Censored:
My understanding is that everyone can sign this petition. After filling data – no occupation etc. is involved but your e-mail is – you will get an e-mail with a hyperlink. Clicking will immediately add you to the list of signatories.
There are just 160 signatures at this point, the goal is 1,000 signatures, and I find it likely that this number will be reached soon. But some signatures are clearly more valuable than others, those of the particle physicists and perhaps adjacent fields.
Please, folks in the field, find the courage to add your signature to this petition to prove that the particle physics community is more than just a bunch of fanatical malicious extremist political activists who never hesitate to emulate Stalin's policies; and the grey zone of silent, irrelevant, and spineless cowards without balls who are enabling the cultural Marxists to harm everyone who is inconvenient for their cause.
You may also share the petition with others.
Thank you very much.