Originally, Sailor allowed the guest posting simply for providing sort of conveniences.
Unfortunately, I found that most "guests" cannot be counted as guests.

I encourage people make jokes with each other. I encourage people dispute on some
technical issues. But I cannot tolerate any people who have no respect for others.
I hope this forum cen be a nice place for novices and laymen.

I know there are many many "high-hands"
among Chinese IT guys. If you belong to them and you think your talents have not yet been recognized by the society, I suggest you go to some other forums. There, you can attack your opponents and intimidate the novices anonymously.