The message fcb4f388df161d351e4279bb7bd3e15a@bouncing.localnet from MJ Ray mjr@dsl.pipex.com contains these words:
OK, this is reacting yet again to accusations that we don't welcome things like OpenOffice.org, BSD, Hurd; and the comment I get repeatedly from a certain person I won't name that "Linux Users Group" sounds like a drug rehab project. In the past, I've suggested Anglian Linux Und Gnu, which bombed, and Anglian GNU/Linux User Group. What else? Anglian Local Users Group? Anglian Libre Unix Group? A complete acronym break and East Anglia Free and Open Source Software (EAFOSS)? Something else?
Linux Ube Gates mayhap?
I noticed that on your A6 notices it was billed as (Anglian) Local User Group rather than Linux User Group, but it was adequately clear from the rest of it that Linux was the driving force.
I think that Linux User Group is descriptive, succinct and memorable. What more do you need? Fine-tuning is all very well, but one doesn't want to meddle with the works too often or something will get borked.