I saw your last three answered questions all a have bounty .. and  

>The question gets placed in the home page's featured tab for seven days.

[From set a bounty on a question][1]

>![Enter image description here][2]

Also like you, there are many more who want to answer bounty questions.

And if you answer a question which is localized or not helpful for others, the possibility is less. However, if a question is good and your answer is good enough then time doesn't matter. See for example http://stackoverflow.com/a/12853037/1723893. This answer is given after approximately a month, but it got 70 upvotes, the reason being question is good.

Also, you can share your answer:

![Enter image description here][3]

  [1]: http://stackoverflow.com/privileges/set-bounties
  [2]: https://i.sstatic.net/mzJMN.png
  [3]: https://i.sstatic.net/M8Lt0.png