I think the pages from the last days (or week(s)?) are all about one topic, whether its an appropiate business model (or not) from the creator of KVS to "scrape" / send specific http requests / transform the user inputs into http code / or whatever you want to call it into code and get the exact responses from certain free data providers.
Most users here have realized that it might be a grey area and that by a legal standpoint its not so easy to answer. Unless we have a lawyer here among the FT folks its more like "I'm saying this, you are saying that" back and forth.

In short,
I think we can end the debate whether its legitimite or not how KVS gets the data, users clearly stated their points here and KVS responded, so unless someone wants to press charges, we are good

But @KVS, let me be clear, if it is the case (I'm not saying it is) you are creating a product that allows users to break the terms and conditions of web / data / ... providers you MUST inform the users that they are breaking the law by using your tool, otherwise you are breaking the law!