I think they will sort some sort of payment method eventually, they are deleting those who write plagiarize content. I am sure if sites like Triond, Hubpages and the others can do it, then Bubblews will learn eventually. They will probably end up doing the same as Triond or Hubpages and pay everyone on a certain day of the month.
A payment method, sure, but I think only the well established writers on the site would be the ones eligible for instant payment. As they should be. It's bad enough that the site has to pay for posts asking them questions and any little thing with Bubblews in the title, so should be a demarcation of certain types of writers and the groups they fall into.