Well if you can pay for a trial even better, the credit card requirement is just another step below that,the next which is a free trial with no card. Whichever

Well if you can pay for a trial even better, the credit card requirement is just another step below that,the next which is a free trial with no card. Whichever they offer is valid because businesses differ. To claim requiring a card for a trial is shady is just one small irrelevant aspect for the vendor. The card requirement is a great way to filter out the less serious ones, if we miss one exception like yourself, it's no biggie, there's always someone who need the solution and willing to pay for it. The only reason where I'd be reluctant to do a card trial is if it was difficult to cancel or they didn't offer a refund if I accidentally forget. Plenty of shady people using fake cards to sign up for trial as well.