According to this "
How to successfully complete the KYC process" if you intend to use hash-power market place KYC is mandatory or if you access your EUR wallet & EUR exchange it will ask for KYC.
And according to this "
What is KYC?" KYC is not required but for previously registered users who are logging in for the first time after the launch of the new platform KYC is mandatory and it is required for account protection.
What is your purpose why did you access your old account again? If you are not planning to use the marketplace and EUR wallet/exchange and you just want to use their wallet and mining you can make a new account with email only according to this "
KYC tiers".
I am also one of their previous users I never heard or even inform via email that they added KYC.
About the alternative, if you just want to sell your miner's hashrate then miningrigrentals is a good alternative without KYC.