This has happened with lot of the users and I'm not surprised that this has happened, after all the site has to remain in profits. I believe that this issue has been settled in their main thread and personally I feel this move is okay, they need to earn to pay us and I'm good if they're yet paying us. However I think they'll rethink if this strategy backfires and considering rates are low they might make a change soon, see their official thread you'll find more news there.