You do not lose time if you are using it to do something relevant for your own future and for investment purposes. The only thing required of you from bounty is just the little time you can at least give to it, but does not require so much time but depending on the one you are doing anyway.

As long as you have the resources, bounty pays a lot. However, for trading or ICO, you will need some pretty good knowledge before even considering any of them, knowledge of trading and knowledge of investment respectively.