for User in this site

Hi, nice to meet you.
First I am japanese, pleases forgive my weak english.
I want to ask one thing to all 4chan and 4ch user.
Why always did all Thread in 4chan site disappear so fast?
I very seldom see a Thread that more than 100 Posted in this site.
I think almost english people in 4chan incline to creat the Own Thread
before read and write for other person's thread.
That is very diffrent 2ch user.
Yeah I know 2ch is almost very selfish people.
But though they did hating or attacking post to a thread,
they have always a respect more than a little for the Thread,
and almost Thread were end up for posted a thousand.
User English speaking should do more the Attacking other Thread
beforeyou escape to create own thread.

I had a friend who smoking marijuana, but he is only one.
Marijuana is not so popular in japan like america.
Almost japanese are satisfied with caviar and cigarette like Marie Antoinette.