Just woke up to an Email from PayPal stating that my account was permanently limited, thinking it's a scam I check and lo and behold:
But what had I done? Well my only purchases using PayPal were through Itch.io, that's the only thing I use it for:

It seems I was limited for "breaking the policies of our partners" mentioned in the first paragraph of the notice. It's no secret that PayPal are quite close with Mastercard and Visa, who have been pushing so hard for Itch.io to ban NSFW content from their platform.
Consider this a PSA: if you're using your PayPal account for other things, don't use it for itch.