This explains the pitfalls of floating interest rates clearly.

You see, entering at 12%, when the market fluctuates and utilization rises, the interest rate instantly jumps to 40%.
The strategy hasn't changed; what's changed is the protocol's calculation method.
By the time you realize it, the profit has already been eaten up.
This isn't an extreme case; this is everyday life in DeFi lending.
Most people only realize after losing money: turns out, interest rates can change so quickly.