You always have the option of connecting to PM over tor [0] if you are concerned about this. You can also use any of the VPN services that are available. Get yourself an anonymous mulvad account, and pay with some laundered btc good luck to anyone that wants to track down your IP.
[0] https://protonmailrmez3lotccipshtkleegetolb73fuirgj7r4o4vfu7...