I'm sorry but I have some doubts about the sustainability of this interest rate over time. Let's do some mathematical calculation.
Investing today $100 and earning 2% per day with compound interest would be having:
10 days after $121.9 with total interest rate 21,90%
30 days after $181.1 with total interest rate 81,14%
60 days after $328.1 with total interest rate 328,10%
100 days after $724.5 with total interest rate 724,46%
200 days after $5,248.5 with total interest rate 5248,49%
365 days after $137,740.8 with total interest rate 137740,83%
I feel it is quite difficult to have these gains, even in crypto magic world....
Since he is an early adopter, OP is very likely to get the returns of his investment and might profit from it. Nevertheless, you are right that the project OP is referring to cannot sustain that interest rate over time, and that would turn out to be scam in the future. OP is right though that right now it is a good coin to invest into specially that market is bloody, it would be good to buy some coins and add this in that list. Although risky, the potential of profit is still there.