now I starting doing signature campaign, if it is last until 20yrs. I got my bitcoin for almost 50BTC in 20yrs. calculation for this 2.5btc per year doing signature campaign multiplying the year, 20 years you got 50BTC for retirement.
You might get 5 bitcoin each year now, the amount you will get will halve every year due to bitcoin price rise. You will get about 10 in total.
5 bitcoin every year from signature campaigns?
That is like 0.5 BTC every month!! Tough to get that much from signature campaigns.
At today's exchange rate, that is $300+/month.
Signature campaign is just for sideline so it means we cannot generate a huge amount like that, however if you have a good eye on investment, you can always use your earnings to maximize your profit.