noooo......
I hate being set up and I would not wish that upon anyone. Now if someone is subtle and says something like, "Don't you think so and so is (smart, cool, amazing, neat, pretty, thoughtful, etc)?" I might try to get to know that person. However, if someone introduces us, I will be skeptical.
The worst attempt is usually the invite both parties to something and then you the coordinator flake but tell the people that you are seeing to have fun without you.
I think if people have the freedom to see and enjoy each other's company they will. However if pushed, people will become skeptical.