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This could be fun. Every once in awhile a bonus bubble would float by when you were reading posts. It would make people want to read the whole post and the comments. It would hurt the bot voting.

ooh, yeah! Add this to the comment/idea I posted...
Maybe if Steem, Inc. set aside a daily pool for bubbles this could really work!
I would totally have a wheeee! moment if I saw a steem bubble on my screen and popped it for a bonus. But there should also be an opt out button.

Now it sounds like a good idea in that context..

Or the bubbles go to the trending page where anyone can pop it :)

Haha! Game of Internet Speed.

What if there was a different app where bubbles are popped for points and those points exchanged for Steem?

Five bubbles on screen at a time, only one contains Steem. Pop the wrong one, lose the Steem.

But if the goal is to encourage stickiness on Steemit then a standalone app won't cut it.