The issue here is that I'm not sure what +2 to reactions means. This seems like it should apply to diplomacy checks made to influence the way a person perceives you, but it's very weak if that's the intent. If this is a varient system, we need some kind of basis for how the reaction system works. (If it's a 2ed thing, it no longer exists in 3ed.)
I don't have my books with me to check if diplomacy has a feat that adds +2 to it (along with some other feat), but I'm fairly certain there is, and that it covers this better and has no faction requirements.