Is similar but not the same, i'm using bootstrap is like that is used in many site also, but i intend change it.
The idea is the user let review about the cryptos, is about a feelings about it, nothing professional
If your platform gains enough traction then this 'plagiarism' of design could be an issue. First of all, somebody can easily say that your website is like a phishing website due to the same design and intentionally mislead users as others have mentioned, so it is definitely worth keeping in mind. I don't recommend using bootstrap for projects like this. You might want to create your own design if you're serious about it.