When questions are bountied you lose score and for some people with lower scores this can be problematic. You should expect to see huge benefits from the bounties however, they are not very clear. I think you should get a notification when you log onto the website or something about bountied questions as for phone users you have to choose a filter and even on PC it isnt too noticeable.
Bountied questions have their own tab on both the homepage and the main question list. There aren't any bountied questions right now, but this is how it should look like:
Also, bountying a question makes it active again and bumps it to the front page.