I liked it better when they sent those offers by mail back in the day. At least my daughter got to add some Nigerian postage stamps to her collection album.
My dad sold industrial measuring/monitoring equipment for many years. I remember some letters he had from Nigeria back in the early 1960s asking for quotes on lumber kiln drying thermometers. He said everyone in the industry knew they were crooks and to not deal with them.
But they did have some cool stamps.