Why should I believe the "Good Point Ideas Blog" over Wired and The Daily Mail?
I think the point is that you shouldn't automatically believe any of them.
When deciding what to believe, you should look at several criteria:
1. How credible is the publication?
2. Do they provide photos, give specific locations, and name specific names?
3. Are the facts in the story credible?
For #1, they are all low.
For #2, the blog wins.
For #3, the whole world generates only a few "millions of tonnes" of e-waste annually, and much of it is recycled locally, or sent to China or India. It is not very likely that the vast majority of it ends up in Ghana. So the blog wins again.