I have set bounty on this Question.
Mangento2 : Use default loader for all process
But I didn't get any helpful answer(even a answer with up-vote). So I lost 50 reputation without any help
Magento bounties allows post or question to be visible on the MSE Homepage featured Tab, which I think, can be considered a premium part/feature of MSE.
Regardless of whether your post or question receives an answer or not, the fact that it has been displayed in the feature Tab and got more attention, views and potentially got more chance to get an answer, I think it is reasonable and fair that your bounty should serve as a payment(in business term) of your post being displayed in the MSE feature page.
All bounties are paid for up front and non-refundable under any circumstances.