Someone tell me why some of my friends' names are being striked through leh.... wad happened huh... Can someone kindhearted enlighten me?

Anyway, I've got a lot of things to say! The most impt thins is that I learnt how to play mahjong!! muahahhahahahah. but i dun gamble. haha so it's as good as no news. Anw the rest i can leave them till tmr. I'm so tired i jus wanna stone now.