It is a decent amount of lunch money.

I would encourage you to learn how bitcoin works and how to secure your wallets and how to use exchanges before jumping into a campaign. Besides you would need to rank up to a decent member rank in order to be able to join most campaigns. So you have to start working on your posting quality and engaging in discussions. It is not always possible but you should try your best.

If you are living in a country where bitcoin can be freely used to buy goods and articles that you need, then defenitely signature campaigns are a good side earning, but try your best not to make them the reason why you are here.