I had credit card debt which is paid off every month in full. They never batted an eyelid at it.
That's completely different from the OP's situation.
In my experience, it makes a big difference. I had 10k of 0% credit card debt (with the money in a savings account) when I applied for a mortgage earlier this year. I thought that if I had 10k debt, the maximum amount I could borrow on a mortgage would be reduced by 10k and I had enough deposit to cover that. When I applied, it actually reduced the amount they would lend me by about 60k so I had to pay off all the cards and then they were happy.