At yesterday's seminar, one of the functional discussions is to provide no modification. According to the discussion, it is consistently decided that in BBS should not provide modification. Next generation forum will not provide this feature.
Or, only some of the total master levels can be modified, others have no right to modify.
Reason: Community is similar to a small community, and anyone must be responsible for what they say, including you write the wrong word.
If you find you wrong, you should reply, or send a new post to correct your mistake, not to modify it on the original basis.
