-trading
-giveway primedice
-bittrex
-signature campaign
Can you create a regular income with give(a)ways from primedice? I think it is based on luck and many compete for the reward. I doubt it can be a source of income.
they are not that big either. 0.001
BTC was the biggest one that I have seen so far. maybe if you have multiple accounts and gather giveaways from everywhere and not just primedice, then it would be a considerable amount. but still not worth the time.
giveaways are generally just a way of spreading cryptocurrencies to new people just to introduce cryptocurrency to them and increase the popularity. they are not to be abused.