Be transparent and explain what that button has inside. There must be something that you're trying to collect or you are trying to inject to the users.
I think that the amount is small to be relied on since for bitcoin,it has
Would you go every day and do it, or is it not worth your time?
I won't bother on that because that is rather very small to waste time on.
Even with faucets too, nope, no more for such.