There are exceptions to that rule, information sites that aren't related to game hacking are fine i'm pretty sure.
QQ = Cry (or complain)
A7A = Egy version of accusing some one of ha.cking. So they call a hack A7A i'm pretty sure.
Bump = Its just to bring your post to the top so more people see it (Bump meaning Bring Up My Post), please note you can only bump every 24 hours.
Flag/Flagged = Crossfire related, it means that the account is unrecoverable. Flagged accounts are worth more, as it's harder to scam.