I am just saying to you and everyone here that it doesn't even take the NSA to "unanonymize" you here. APC is under U.S. jurisdiction, which must abide by the document retention requirements of CALEA and the U.S. Patriot Act. In other words, the VPN you are using, APC, your ISP, and your email provider all keep logs. Any federal judge can subpoena any or all of those to uncover who you are.

If you want to make it harder for them to unanonymize you, I suggest the following:
- use AirVPN - they actually don't keep logs since they outside the US jurisdiction
- use ProtonMail as your email address - again they are outside US jurisdiction. They are the only ones with true end-to-end encryption. Using Google mail, Yahoo, Exchange, etc. is like putting graffitti on the wall of the airport... you're trusting those companies with your private communications. Would you give me your APC password? If not, then why trust these companies?
- don't use Windows or any Mac products... use the Linux distro called "Tails". Be wary of the internet connection you are using while using Tails because doing it at your house will still be traceable.

Other advice, don't discuss union business through normal text messaging either. Normal text messages are also required to be retained. Even the so called "secure" iPhone messages are not secure since they are stored in Apple's cloud services. They too are a subpoena away. The only secure messaging platform is "Signal". It offers true end-to-end encryption. Apps like WhatsApp have known backdoors and are owned by disreputable companies anyways (e.g. Whatsapp is owned by Facebook).