i can only speak for myself, as far as i am concerned i try always to send back at least a flower, sometimes a short mail.
Even to Spammers, as they are human beings, too
In other forums / polls i voted for Brad Pitt or George Clooney (what's wrong with some eyecandy ?) but in my case, i also posted that i do not have a problem with someone who is wearing sunglasses on their profile pic as "i am prepared to kiss the" because i am not judging a book by it's cover.
But maybe i have plenty of time to send flowers back because it's not so busy in my mailbox anyway.
RE: DEDICATE A SONG TO SOMEONE SPECIAL
For all friends, old and new.