Because it'll take a while to become senior member. When you're senior member you can enroll to signature campaigns and easily earn 0.1 a month.
but you are not a senior member and yet you have A referral link on your signature ?
can you please post a link to signature campaigns ?
many thanks
You can see most campaigns here:
https://bitcointalk.org/index.php?topic=615953.0 There are campaigns for all member types lol. But you get paid more the higher you are, and activity only increases every 2 weeks by 14 points at most.