blubluh: “LU: I think the +1 shows agreement or appreciation.”
I know that; I just wasn’t sure why.
Maybe the 1 is referring to the person who is writing +1 and he is saying that there is an additional person who agrees with whatever the original person wrote? According to what you wrote about FB that would make sense.
If that is the case, I guess it doesn’t make too much sense when I write + 1,000! oh, well.