While not the best site for online dating, because of the troublesome way the emails or chat system is set up, asiandating.com is a legitimate site. It is asiandate.com you have to be aware of. That site is what most of you already have mentioned about lots of emails, use of credits to chat, etc.
It seems foreign dating sites have higher risks in general, however, they weave better results when it comes looking for a mate. If Asiandating.com had a way that users could send atleast send messages for free at the bare minimum or a monthly trail, I would rate them 5 stars