if anyone interested I can share a whole lot of letters (more than 1200!!!!) from all over the world not only Nigeria. I think nowdays nigerian letters are the very small minority. More moderns use russian names.
BTW do you know there is a "nigerian letter generator" on the web.
anyhow all this stuff is very annoying, thanks god recently these letters are stopped by spam guards. hope not to have more incidents like that in the future.
I forgot: all these letters are very useful. they provide quite a list of names that can be used to name our figures in our games. from colonial to pulp or even modern I think they are useful to name our characers, not to mention tha some stories of them can be adapted for scenarios.