If your users are from poor countries, you'll also get pennies from ads. TAANSFL. If you have an actual community, it's more efficient to simply ask for donations.
If you read my post history, I'm a constant dissident in the "let's ban all web ads" movement exactly because I think they act as a redistribution mechanism from wealthier societies to poorer ones.
That said, if you're running a hobby site that only targets people from a poor country, the money has to come from them anyway, be it from ads or from donations. In that particular situation, why would ads bring more money than donations compared to sites targeting people from richer countries?
