score:6
I was in a similar situation (getting a residence permit for studies) back in 2012 and issuance of my residence permit overlapped right with the Golden week and I was not going to sit around on my own for that period. So I got the receipt slip (I recall vividly what an incredibly flimsy piece of paper it was, have something to store it well so it does not tear) and I don't remember now whether I had to get some extra stamps and my picture attached since I wanted to use it for travel, so to be on the safe side, absolutely do.
It all worked out surprisingly well and never was that sheet of paper questioned by anyone but myself during that trip, which included
all of which in provinces far from the post that issued me the receipt.
The pic below gives a bit of an impression, the large white space on the lower right was where my picture was stapled on and stamped. The whole thing was not larger than two hands. Collection was possible at least two weeks after the "received on"-date while the expiration date actually represented the expiration of my applied-for residence permit, not the receipt.
Regarding the link you cite, I have two comments:
Edit: In a comment, user BD. confirms having flown with such a receipt multiple times and as recently as 2017.
Upvote:-1
I inquired about this today. You need your original passport to fly domestically. Trains will allow you to travel with the visa application receipt with the picture. But, of course, the Chinese laws are constantly changing (as the visa process changes again next week), so be prepared for anything.