Mr. Homework: Homework "helper" on Weibo

Chinese elementary or high school students often face tons of homework after school, some of which can be very difficult, forcing students to stay up very late at night. But now, students have a new helper on Weibo, the Chinese equivalent of Twitter.
All you have to do is post a question--be it math or Chinese--to a Weibo user named "Here comes the answers for homework". The user, also nicknamed "Mr. Homework" will either answer it himself or repost a list of volunteers you can turn to. And normally, you will get the answer within 10 minutes.
"Mr. Homework" is a 25-year-old programmer surnamed Lin in Fujian Province. Lin said he has memories of huge amount of homework, which has inspired him to help others.