An old saying in Chinese, “祸兮福所倚，福兮祸所伏”. My KDD paper had been rejected 6 times before it got accepted, ICDM 2018, WWW 2019, KDD 2019, WSDM 2020, WWW 2020. In the initial version, we focus on a general random walk method. Later, we decide to narrow down the scope and focus on a specific task. I went back to the original version and used it as an extension for a journal. Maybe it is time to prepare the cover letter and submit it.