FYI: The extension offers many private groups that I can't join without approval and that seems to disrupt the flow of the extensions.
I did specify that groups requiring approval to join shouldn't be submitted, but not everyone took notice. (And then there was the several dozen Google Groups URLs that were submitted!)
I appreciate this isn't made clear in the instructions, but if you have a desired set of groups in mind, you don't need to use the chrome extension. Just join the groups you want saved and (provided you've sent the account details through the form) they'll be added to the queue to be archived. I did a lot of Amateur Radio (Ham Radio in US) groups that way.
It's a set of groups that have been specifically requested by the fandom community. Of course, the groups handed out depend on what's been joined, so if / once all the fandom groups are joined, we'll move onto something else.
I appreciate this isn't made clear in the instructions, but if you have a desired set of groups in mind, you don't need to use the chrome extension. Just join the groups you want saved and (provided you've sent the account details through the form) they'll be added to the queue to be archived. I did a lot of Amateur Radio (Ham Radio in US) groups that way.