there's many ways to get BTC.
- faucet
- trade
- mining
- campaign
- ads on blog/website
- do some task
- gambling (i dont suggest this one, too many risk if dont have godly luck

)
Yes this might can help you to collect fast bitcoin but if i were you im going to choose signature campaign where you can easily earn money without investing or risking money this is sure bitcoin per week depends on the signature campaign you joined if they going to pay high or small of course it always depends on the rank
I agree with you, hence we are on the same campaign i could somehow assure about on the earning which is decent enough without risking anything and you only need is time and effort for sure you would gain bitcoin in weekly basis , as he said it would really depend on your rank. In fact there are lots of ways to collect btc.