Mods voluntarily do their job, so you should, too.
Although moderators do volunteer their time to support the website, they are paid for their work. IIRC 25% of the forum's income from ads is split among the moderators, and they're paid according to the work they do (so a mod of 15 sections would receive more than a mod of 3 sections).
How does one become a mod? I see mods as being like Spoc from Star Trek. Very serious and logical.