So "Berlin Group 21", set up to publish a "statement of concern" about the OPCW, has said that claims that another organisation is behind it [read: the WGSPM] is "entirely false".

Here are the emails from McKeigue on this matter so people can make up their own minds.

Here's the link to the matter on which Piers Robinson "worked over the last few months to co-ordinate. It is, unsurprisingly, the Berlin Group 21's "statement of concern".

Robinson and the WGSPM are not mentioned anywhere on the Berlin Group 21 website. https://www.heise.de/tp/features/Glaubwuerdigkeit-und-Integritaet-der-OPCW-wiederherstellen-5078562.html

I've heard from the authors that the request for correction by the Berlin Group 21 was sent by...

Paul McKeigue.

Further details, including more absolutely ham-fisted attempts by the Berlin Group to make its case, can be found in this thread. I can assure you it gets better: https://twitter.com/michaeldweiss/status/1384645576680251401?s=20