I do have more than one keyboard and on the stock rom the notification (which is a keyboard icon in the status bar) would be there regardless of default whenever a keyboard was in use. This was a highly useful feature allowing me to switch keyboards on the fly depending on input requirements. There are some really efficient keyboards that lack certain useful features like arrow keys and numberpads, being able to quickly switch keyboards is an effective way to get the best of all worlds. Why people found this so annoying is beyond me. The best I can do right now is use Tasker to replace it, but this notification will be there ALL THE TIME, not just when typing, now THAT is annoying.
Sent from my HTCEVOV4G using XDA Premium 4 mobile app