Many are just to reduce the amount of leeches trying to use and abuse the trial. Usually happens when it offers too much good stuff and people keep creating new accounts all the time to use the resources.
The logic is that putting a credit card is a much higher level of commitment and ensures people aren’t just creating new accounts with new emails since card numbers are a somewhat smaller set.
I also hate it and walk away from those things, but it makes sense.
hmm I mean if you put an email requirement, I think it will deter most non psychopaths after 3-4 renewals This is based on my own feeling and assumption that I am not a psychopath. I am sure there will be some people with 20 emails for such stuff but I wonder what is the trade off between preventing this and scaring away people like us.