P&S, doesn't specify that it is only in relation to any one country. I think it would be encouraged as you're also helping teach the member, how to find the appropriate boards to post on.
Why not ask them to wear a SIG linking to your project? I also can't see there being anything wrong if at the end of the post they had a snippet to this effect.
"The content of this post was created by OP. Language assistance provided by Jet Cash and the Ivory Tower Project, " I'm sure you'll come up with something better but this would seem to cover your bases and keep things transparent.
I think it is a topic like any other that should be discussed. In the proper boards it can be an enlightening experience, but there will undoubtedly be some heated discussions. It will be up to the moderators to make sure that the level of discussion is inline with forum policy. In all honesty some of these types of threads are created recklessly and haven't resulted in any catastrophe that I'm aware of to date.