2. Xiaoxiao is a big affliate there, and he has profited over 100 btc(just my speculation) I think xiaoxiao earned enough, so he locked his thread. Xiaoxiao didn't lose anything, he ahs hundreds of downlines can earn very decent money per month.
No, he locked the thread in order to keep people from warning potential victims.
You'll notice he keeps posting several times a week and re-locking it. Nobody would do that unless they have something they are trying to hide. Shadiness personified. Be VERY careful.