Previously, MRBot would send you a private message with notifications and rewards.

Now, its an optional thing.  If you open up a private message with the bot, his notifications and rewards will go in that message window.  If you do not open up a private message with him, it will automatically go to whatever your current active screen is.

Some may prefer to keep it separate, some may prefer to have it all go to your active screen, so, the choice is yours.