You are on to something... I signed up to coinbase 10 years ago, but didnt use my account in about 5 because hackers got into it. Well they didnt take everything, so I reopened my account and put some money into it and also signed up for the 29.99$ a month coinbase subscription. I really dont even understand what this is getting me because coinbase keeps lowering my fees based on how many trades I make.
But searching their fee scale they say nothing about this little bonus.
All I did was make a bunch of 10 or 100$ trades to basically paper trade but with real money. Not to make money but to learn for when I put real money into it.