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Hello Moz community I am looking at a couple of websites to guest post on and it feels almost too easy. I am concerned these sites may be part of a PBN. Their spam scores are quite low however (6% - 11%). Is the new Spam Score on Link Explorer (not Open Site Explorer) a reliable tool to vet PBNs? I asked a member of the Moz team but they didn't know. Perhaps another will. Here is the website http://www.dspacecloud.org/ Thank you in advance for your opinions.

Hello Moz community I have a duplicate listing in Central Index (GB) and all communication channels seem unresponsive. I have emailed support and general sales. I even tried contacting them on their facebook account. I am stumped as to how I can get this duplicate listing removed as I have no control over it and the support is non-existent. Any suggestions would be gratefully received.