You know... I guess it should be clarified... that as far as your credit card information goes, as you can see by the responses you should feel quite secure...
As far as a more overarching take on "Is subscribing safe"...
Well, that's a whole other can of worms.... please fill out this questionnaire:
1. Marital Status __ Married __ Single
2. If married, how much does she love you (Scale of 1 - 10) ____
3. If single, how long were you planning on staying that way? ___ Centuries ___ Decades ___ Years ____ Months
4. How much extra cash do you have on-hand for a new stick, rudder pedals, monitor, mini-fridge, field expedient bladder evacuation devices? $ _____
5. Are you prone to breaking things when angered? ___ Yes ___ No
6. Does your job require you to be alert in the morning? ___ Yes ___ No
7. Do you have plans for the first three Friday nights each month, around say 10PM CDT? ___ Yes ___ No
These are just the basics, fire this up and someone will get back with you shortly.