You also get paid by selling your data with their tokens. I guess also to buy the data is the same story?
Why would an individual buy somebody's data? I think it works only one way, you sell your data, Bitron will collect it, analyze and sell it further to interested companies so they could use this analysis in order to improve their digital marketing campaigns.
I don't think there would be some obstacle for individuals to buy data but as you stated it would be meaningless and not expecting any individual go for it.