VIA lecture by Dr. Wen Zhao ''Preferred axis in cosmology'' was given on 27.05.2016. His presentation is attached. Its record is in VIA library
http://viavca.in2p3.fr/wen_zhao.html
The following comment was made in the course of discussion.
Emmanuel Saridakis: So the cosmic dipole seem to have a robust observational indication, hence it is not a cause of any systematic error. In that sense the situation is similar to the one in 1994-1995, where obervationalists started having significant indications for universe acceleration, but it took 4-5 years for the community to agree with that.