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Kilroy was here
What are the easiest ways to obtain some GeekGold?
Welcome to BGG! I had the exact same question when I started. In fact I imagine most do.
The only surefire way to obtain GG (Geek Gold) is to donate money to BGG. You get 1 GG per dollar donated.
The best time to do that is during the pledge drive at the end of the year as your donation should be doubled for Geek Gold if they pass the goal.
Short of that it's difficult. Make contributions to the BGG community in the form of pictures, videos, reviews, and just being present and positive on BGG. But if you want enough to bling out your ID the best way to get it is by donating to BGG. It also removes adds, though the adds on BGG are usually not bad at all. More like news.
It took me a few years to acquire GG. I don't have a high paying job anymore (though I finally have a job I love) so I can't donate much. But I do reviews once in a while.