90% of the girls there are looking for a stable relationship. And maybe less than 1 percent is looking for a one night stand (not the hottest girls usually).
The fact that they are looking for a stable relationship does not mean they want to get married straight away.
I once wrote a review about dating Indonesian girls and where to meet them.
You can still read it here: Where to meet Indonesian girls?
I recommend you to update to the premium version though (only 25$ per month) as it will allow you to send an unlimited number of messages.