They are officially gone.
Their website is down and this is the only thing it says in their page:
Goodbye World
While we previously blocked users from countries with over-reaching regulations, new and extensive regulations added to the European Union in January 2020 have made it impossible to reasonably operate Privcoin.io
Privcoin has been not for profit and will donate the remainder of the "profits" made to worthy charities.
We sincerely hope that we have saved several lives by providing privacy services.
Cryptocurrency expert kidnapped for $1 million bitcoin ransom
Thief behind violence and cryptocurrency grand larceny pleads guilty
Bitcoin exchange chief kidnapped as he leaves work
Dutch Bitcoin Trader Tortured in “Brutal†Home Invasion
2 bitcoin traders were held at gunpoint in an armed raid in rural England
Bitcoin Trader Kidnapped and Tortured in South Africa
[Caution] Telling other people how much Bitcoin you have
https://privcoin.io/