Sad to see the stats site go this route without any warning.

I run many sites some have way more than 12k users on them and I don't pay anywhere near those levels.

Your either on some terrible host or some really over priced plan.

Storing and showing JSON data is not costly....
All your doing is storing the users JSON results once they enter there address.  so where is the cost?

Feels like you just tried to rug all the users here for funds...  Also zero chance that site costs 12k to run.. Stake.com don't even cost that a month!