I have studied already all vocabulary for JLPTn2 from website such as Tanos and many others. I found the reading in the exam for N2 contains loads of words not found in any list. Obviously this is a problem for understanding the reading.
I am going to build in a function for users that take the test to add words they saw on the test that are not on renshuu's lists. I'll be adding incentives such as renshuu pro time and maybe a grand prize winner with a package from japan, done as a lottery based on how many words you reported.
There obviously needs to be some protection put in place, but I'd like to continually expand the lists based on each test.