What does this mean?

Can anyone explain to me how this works? Or what it means? Like, what are the (#)s, and ... how are the names generated?

• _kennedy_ (17) -- One of the Slayers (in Training). I like her , but never friended her.


• hellmouth_news (17) -- Probably should have joined, just to keep up on "current events."


• hellmouth_ooc (17) -- Eh? What's this?


• evil_hand (17) -- *dr00l* Lindsey!


• sunnydale_socks (16) (community) -- SOCKS?


• _whistler_ (16) -- Dude, I thought the Whistler was dead or something.


• stephen_connor (16) -- Well, he ain't ever coming back.


• evilhandissues (15) -- *dr00l*?


• rona_sit (15) -- Another S(iT) that you don't hear from that often.


• lily_anne (15) -- Dare ga?


• staplerx (15) -- Hey, Jimmy.


• stoic_wolf (14) -- o_O WHO ARE YOU PEOPLE?


• vhg (14) -- Hey wait, I know you.


• d_minion (14) -- *stare* WHOOOO AAARRRE YOUUUU?


• amy_de_ratted (14) -- Ah, wait! Amy! Evil Amy! Was a Rat Amy! Are your relatives living in my walls?


• black_rayne (14) -- ??


• cole_turner (14) -- One of those antiheroes that I rooted for, then hated, then rooted for, then hated...


• phantom_dennis (13) -- Dennis! ;_; I miss you, dude!


• the_powers (13) -- You... freak me out.


• _charmed_eyes_ (13) -- Hiiiii!

Who are your most trusted non-friends?