From my observation, Bitcointalk.org has helped in creating wealth creation for thousands of unemployed youths.
This has helped in reducing unemployment and in turn boasting the Nigerian economy through Wealth Creation.
Somehow you can get data that thousands of people have become successful and rich because of the bitcointalk forum. If we refer to the signature participants, actually the number of participants is not many, apart from that the income from the campaign is also not good if used as the main income because it is unstable, but for additional income it is very good.
So I don't think we should rely on income from forums. It's a good idea for us to keep trying in real life and make the forum a place to discuss and earn additional income. Especially when it comes to the Nigerian economy, I think what you are saying is too much and going on a signature campaign will not bring much change to the economy of a country in general.