It's not a translation issue. "Where I am from" also works as you say. But not for everything. It's not an exact usage both "where I am from" and "where you are from". Many forums... actually many listings offer subdivisions where the slash character is used to group. So, no. It's not silly.
It's an unecessary complication. "And" is far more obvious.
As a side note I only added it because it came as a second thought. My real opinion in this matter is we don't need to change the forum name.