Yeah, I was talking more about using the card as a large (15k+) low interest loan. For example, pay off your car payment with it. That wouldn’t be good for your credit because you’re closing out a secured loan and replacing it with a whole lot of unsecured debt.
And as mentioned, miss one payment or make one payment late, and BAM… 15+%, and possible addition of accrued interest. Yeah, don’t forget that little part of the fine print. Just because you’re getting 0% doesn’t mean they aren’t keeping track of just how much interest you could be paying. And if they have that line of small print in there, they can whack you with all that back interest because you broke the conditions of the original 0% offer.
With a traditional loan there is probably a late fee, and maybe a grace period, so it’s much more forgiving.