I've thought about this idea many times, and one idea I have had that I haven't seen verbling talk about---perhaps it doesn't make sense yet with only English +

I've thought about this idea many times, and one idea I have had that I haven't seen verbling talk about---perhaps it doesn't make sense yet with only English + Spanish---is to run on a credit system rather than matching you up with an 'opposite'. So, if I want to learn spanish, rather than trying to find me a spanish-speaker wanting to learn english for a 50-50 conversation, it just matches me up with a spanish-speaker wanting to learn _anything_, and I burn credit talking to them. Later I can earn credit by speaking to a _anything_-speaker wanting to learn english. If you think through that system lots of cool ideas come out, especially if you attach a monetary value to the credit---like people only earning credit and cashing it out (tutors), or people only spending it, and injecting cash into the system (impatient/rich people). Anyway, Verbling guys, you may have already thought of this, but if not, I've been thinking about it for quite a while, hit me up if you want to chat more about it.