TL;DR: Instagram and Twitter outsources their non-US moderation to the Canadian company Telus. The German branch of Telus has employed 400 to 500 Iranians. Some of them seem to be supporters of the Iranian regime and are now deleting content that is critical of the regime.

Personally I think it's concerning that Telus is hiring social media moderators from within Iran:

https://www.irantalent.com/en/company/telus/a5b5324f-46fe-4d...

Hiring 500 people of Iranian origin in Germany and giving them the keys to practically censor anything on social media is one thing.

However Telus seem to be recruiting their social media moderators from within Iran. They are literally begging the Iranian regime to infiltrate them.