.s is for salutes, like "you ripped my arse up," not like "whoa you just got fifty kills in a stuka."
I think there should be a .wtg command for the people you know that aren't on your country. I know you can say it on private channel or 200, but not everyone is tuned to 200, and I'd rather type / .wtg meshotu (enter) in the middle of a fight than / .radio 1 meshotu (enter) / wtg (enter),wouldn't you?