If you were going to do this, what card would you use?
Do any credit card companies have restrictions on bitcoin purchases?
Which cards offer incentives and bonus dollars for purchases?
I think there some card that can buy bitcoin i cant remember but i think coinbase is using card to buy cryptocurrency. And i think to others its a convinient way to buy bitcoin using cards but i think it will big charges too.
Big charges is the "norm" of using credit card to be frank. Also most of exchanges nowadays accepting credit card but very few that doesn't require KYC simply because they don't want to risk accepting unverified or stolen credit card elsewhere and sued. They prefer to keep their asses safe and be sure to not purchase using credit card if you come from a 3rd world country because you'll be surely declined (there's an exception tho).