No, it won't have that affect at all. They weren't creating pages based on search traffic they were already receiving, but search traffic they could potentially

No, it won't have that affect at all. They weren't creating pages based on search traffic they were already receiving, but search traffic they could potentially receive. You can still use the Google Keyword Planner to get lists of millions of keywords and their search volume. Webspam isn't going to be reduced by this change.