We've read Mr. Brion Vibber's message on the planning page of hacking days,
also noticed an anonymous comment on the talk page.
We totally understand that the hacking days should be focused and productive.
Unfortunately, we have not received many practical advises and discussions.
That's why the plan had been inaccurate.
After all, one idea that may be crazy came into our minds: shall we just plan
for logistics and leave the actual events to MediaWiki developers? That is, what
will be done in that two days of hacking should be decided by core developers
Please provides us more suggestions, thank you. :)