Posting on social media anonymously without getting shadowbanned

Questions
1

I want to start posting on twitter but with most anonimity possible. I am afraid that twitter my flag my acc for suspicious behavior. This happend to me once when I was using my old VM system and all my comments were dumped into “spam” section. I dont know the actual reason - whether this was my VPN (however twitter does not forbid VPN) or some kind of fingerpriting? Before i start my trial-and-error run I would like to hear and external opinion about my idea and VM setup to:

  1. Fresh Ubuntu system
  2. NAT Adapter instead of bridge
  3. No host integration (like drag-and-drop) and no guest additions
  4. Firefox with privacy extenions / Brave with profiles
  5. always same system language as my VPN
  6. Something to prevent getting fingerprinted by canvas
    What else I have to do to start posting anonymously without risk of being flagged/shadowbanned? Any tips are welcome. And to be clear: i am not going to post anything bad. I wont probably break ToS. Just want to make sure no one who doesnt like me wont find me.
2

Here are some anti-detect browsers I’ve tried. They’ve all worked well at preventing captchas and allowing sign ups. Can’t speak to their privsec or anonymity. Incognet comes with free proxies and I was able to make a google account with it giving option to send sms to me instead of me having to send to them. The others you can use VPNs or buy proxies.

3

In my experience, VPN is usually the culprit. Even if the site doesn’t explicitly ban access, those IPs are not a secret for long. Spam prevention systems catalog them, identify you as a user masking your IP, and raise your spam score

The only mitigation would be to avoid proxies that are shared with other users who may get the IP flagged, something like a personal VPS. But then you face a tradeoff: your public IP will be pretty unique, you may be trackable across sessions

4

Sadly there used to be a Tor hidden service for it, but it appears to have been shut down shortly after Elon Musk bought Twitter.

5

requires to link your card to it, wouldnt call that free tbh

7

I linked to https://incogniton.com/ which is what I meant and it literally says no card required in the onebox.

8

VPN server and your time zone need to match.

Also, many VPN servers IP are flagged.

9

Which social media? Bluesky and Mastodon don’t care about VPNs and aliases that much. Facebook will require face scan if you sign-up with one. X will generally allow you to create an account but you will be banned soon after.

10

The setup can become suspicious if it looks too perfect or changes a lot. I would keep the browser boring, avoid lots of anti-fingerprint extensions, and make the account pattern consistent: same region/language, same device profile, no fast mass-following, and a few days of normal reading before posting much. For anonymity, separate the account from your real phone/email and contacts, but do not expect X to be friendly to VPN-only new accounts.