It's better to promote only good projects only, don't go on promoting any projects you see just because OP said tow to three bounties a year isn't a good plan, most projects are scam as we know it, that's why it's good to do your own research
How do you know if they are good projects? Lots of projects look great, but eventually they end up scam after the bounty ends or they complete their ICO. It is better to choose the projects that have been listed in the exchanges