

That’s not quite true, although technically in this case you would be pseudononymous.
You can use Lemmy at opsec level 4-5:
http://blog.nowherejezfoltodf4jiyl6r56jnzintap5vyjlia7fkirfsnfizflqd.onion/opsec/index.html
Register an email over tor browser, use that to verify a Lemmy account over tor browser, only ever access over tor browser. Be mindful of what you say and post.
On graphene you can also install always-on orbot/invizible in a seperate profile or private space and use apps like Voyager
Note: some instances like.world block tor users.
dbzer0, Lem.ee, and mander.xyz I know are cool with it
Here are some other options for anonymous email:
https://onionmail.org/ https://tuta.com/ https://mailfence.com/ https://www.guerrillamail.com/ https://yopmail.com/en/email-generator (Generate Randomly an Anonymous Email for Free) https://nbox.notif.me/ (Free Anonymous and Private Disposable Address Provider) https://addy.io/ (Open-source Anonymous Email Forwarding) https://www.secure-email.org/ https://maildrop.cc/ https://www.mailinator.com/ https://www.secure-email.org/ https://librem.one/ https://flashbox.5july.org/ (Flashbox - Anonymous Disposable Email) https://user.disroot.org/pwm/public/newuser (Disroot) https://www.throwawaymail.com/ https://nbox.notif.me/ (Anonymous, Private, Free) http://csmail3thcskmzvjicww3qdkvrhb6pb5s7zjqtb3gdst6guby2stsiqd.onion/ (cs.email - Disposable Temporary E-Mail Address) http://torbox36ijlcevujx7mjb4oiusvwgvmue7jfn2cvutwa6kl6to3uyqad.onion/ (TorBox) http://6n5nbusxgyw46juqo3nt5v4zuivdbc7mzm74wlhg7arggetaui4yp4id.onion/src/register.php (Morke) http://mail2torjgmxgexntbrmhvgluavhj7ouul5yar6ylbvjkxwqf6ixkwyd.onion/ (Mail2Tor) http://2nxpboa3ya52j5au4gxwkdt4nxoh5g4y4f3tuqedlza46y35jmv6doid.onion/ (SecretMail) http://ovhcd6qhuz22bid42pw7unwfqf7i55rghb5x62q4kxchjnk2gz2ot6id.onion/ (Hobe Onion Mail) http://5nm4mdhzyfbif6i5qv3kh4i7j2trlbuvujsencsqn55opaa3d6qhfcqd.onion/ (Hidden Mail Onion Server) https://onionmail.org/ (Clearnet) http://pflujznptk5lmuf6xwadfqy6nffykdvahfbljh7liljailjbxrgvhfid.onion/ (Onion Mail) http://en.vzoc4aylgsqwexe6okjbz2ix5atgdv5xyibnkcekmtg4u23syz6a7rid.onion/ (OnionMail) http://j3bv7g27oramhbxxuv6gl3dcyfmf44qnvju3offdyrap7hurfprq74qd.onion/ (adunanza Onion Mail) http://eot3almpracnkz7gz3r5yr3qaymngqsrmvbica2shw5zuc52az2gxoqd.onion/ (Dozaru Onion Mail) http://2nxpboa3ya52j5au4gxwkdt4nxoh5g4y4f3tuqedlza46y35jmv6doid.onion/ (Systemli) https://www.systemli.org/en/ (Systemli Clearnet) http://fozdean5ayswi6jtseg2fgyysqt3dskoosmoc6gnqia4dxwxiuvg3oad.onion/ | Underworld.dog Onion Email"
https://blog.torproject.org/tor-is-still-safe/
Tor is still alive and well I promise
It is not perfect but it is by far the best thing we have. If it’s legal for you to use you should be doing so.
For sensitive operations you should take further steps (follow the blog) like properly setting up your device, and connecting via a network not connected to you