I'm not sure when you last tried, but ProleWiki allows editing without an account now, the edits just go through an approval queue. Your IP will show but you can use a VPN if you like.
The filmmakers are from Australia and they go to various places in the Soviet Union asking people about typical quality of life questions like price of rent, bus fare, work, having a look at farms, etc.
In case anyone needs this document out there in the marketplace of ideas:
https://history.state.gov/historicaldocuments/frus1958-60v06/d499