Surely the chapter is about the promotion of Wikimedia in the UK, raising awareness of our projects and supporting the wider projects of WMF.  I don't see a link between SPs on Wikipedia (and or other projects) whose disruption is essentially behind a computer screen and who wish to engineer splits between editors by subtle and unsubtle tactics that can only work on collective projects.

Sociétés or Limited Companies are bound up in legislation not policies and guidelines. The law, memorandum, constitution and resolutions define what WMFUK2 is and I doubt that any SP is remotely interested in being involved.

As for giving my WMF usernames out, I certainly would be reluctant.  I have had three, I have never been banned or blocked and don't think I have had a test-1 even.  I have left en-wikipedia twice, once because a wp project "leader" accused me of fabricating a reference because I had hosted a phd thesis on my own "porn" site; The second time because I had unfortunately started afresh too soon after my RTL and carried some of the baggage and now much saner and wiser in a state of non-editing. There are no smoke and mirrors, I think that anybody with a an hour on their hands could probably check through the enwiki-l archives and find all of my past personas.