Even if you use it for a month or two, it is still easy to see which girls are online among those you've chatted with before.
You can register here: Sign-Up to Indonesian Cupid for Free.
Typically, you'll chat with employees, teachers, nurses, etc.
Online prostitution on Badoo is, unfortunately, a problem.
Many "girls" on Badoo are in fact pimp looking for clients.
For this reason, this is where you will meet the most girls who can speak English and who have well-paid jobs.
This is also where the most girls are interested in meeting foreigners.
I once wrote a review about dating Indonesian girls and where to meet them.