Based on the last link, it sounds like OP has been placed on a blocklist by a moderation tool

"This service labels asymmetrically:

Offending accounts outside the community are usually labeled at the account level so abuse is highlighted universally. Experience on X shows that one-time abusers are typically repeat offenders. Post-by-post moderation does not scale.

For offenders within the community, granular content labeling is preferred. Account-level labeling is reserved for the worst offenders and requires a two-thirds super-majority of the team to approve. The moderation service must not become a disruptor.

This approach helps with managing the load as the platform grows, and to ensure users are aware of content violations before they engage with an account. Specifically, 60/40 propagandists mix fact with disinformation to sow disruption in democracies. A user innocently engaging with the account based on the factual content needs to know the context.

There is no plan to act as a verifier of friendly accounts. Send moderation Appeals and other inquiries to here. Appeals of Label actions that are not justified in the service's immutable history will be automatically approved. Denial appeals will be supported by provision of relevant moderation history, redacted to remove private information for the protection of moderators."

@thanksforallthefish

Alright, I read through this and have sent an appeal to that admin account hoping to get to the bottom of this.

However, as soon as I read the moderation policy, I saw that the target community is anybody involved in the fight for democracy against rising authoritarianism, and that is enough to have me believe this is far-right shit going on.