I went to five forums and discussed them. They are all professional forums.
Http://www.phpwind.net/read-htm-tid-1609102-ds-1.html
Http://bbs.chinaz.com/Club/thread-2683408-1-1.html
Http://www.seowhy.com/bbs/thread-761732-1-1.html
Http://bbs.chinaz.com/Club/thread-2683408-1-1.html
Http://bbs.admin5.com/thread-3216144-1-1.html
The answer I got is summarized as follows:
1. Baidu should keep its psychological status normal.
2. Baidu will have a major update every Thursday, removing unused external links.
3. It is in normal state and does not matter. Baidu's record-filling process is too high, proving that it has not been reduced. The record-indexing speed will be faster in the future.
Solution:
The use of software to send out-of-the-Chain services will increase a lot in the short term, but it will eventually decrease rapidly and it is likely to be punished ~!