I would have to respectfully disagree though. Cos like I said, the reason why free trial is there in the first place is to entice users. There are so many products without free trials.

Again, the burden should not be in the shoulders of the end user. There is no reason for the company to ask for credit card other than data sharing, other dark patterns and spam. Like many have mentioned, spam can be dealt with better by other means. These are companies who have tried it out. I don't know what else more to say. :)