Did I use it wrongly? I still find parsing clause elements a nightmare, so every trial balloon is a gamble.
Sorry, I'm a massive pedant, you'll have to excuse me.
It's 'who' when it refers to the object of a noun, like it does in your sentence ("Who is the recipient of this letter?") and 'whom' when it's the subject ("Whom is the letter addressed to?").
Like I said, sorry!
Mr. Tea: I think I see what's going on here... you have the words "subject" and "object" backwards.
1) Sam threw the ball.
In (1), Sam is the subject, and the ball is the object.
(edit: sorry if that example sounds kinda insulting or condescending by its simplicity! Not intended at all! Years of linguistics makes you use the simplest examples possible...)
lol tea, no, that this and that instead who this and that (referring to a person).Just that do you think you are?
It's ok. It's almost impossible to be a pedant without making mistakes yourself in your corrections! AND, your comments on statistics are not only spot on but well worth repeating! Linguistic analysis and statistics are brethren in the sense that people love to blab on about them but always seem to misunderstand, well, everything.