I am confused by the suggestion that the word "love" would indicate happiness. Usually when I use that in source code, I'm being sarcastic. As in, Don't you love the fact that Google's API documentation is inaccurate?
Yes, but statistically that will be mere noise, just like I love love love this algorithm or this algorithm works hand in g love with that other one.
Maybe. It is possible that the word is used sarcastically more often than literally though. For instance, it wouldn't surprise me to learn that the word "literally" may actually be used more often to mean "not literally".