The comment about wmowners.com being unused is not accurate. WMOwners is still an active forum with very dedicated volunteer moderators and daily postings. Yes, some of their mojo has been displaced by Facebook groups - a trend I suspect plays out with most BBS style forums.
I personally visit the site at least every other day, and it is still a very useful site for WM info.
I think the death knell for anti-Wyndham groups in WorldMark was the passage of the restated bylaws in 2016.
Passing the bylaws required an affirmative vote from 25% of the total voting power in the Club, not just a majority of votes in the election. 25% of all owners voting to approve something in most any timeshare is next to impossible, because not enough owners vote. How many timeshares struggle just to get a 15% quorum?
What was particularly interesting about the 2016 election is that it revised the election process. If an owner objected to that or just objected to the fact that it was an up or down restatement of the bylaws instead of individual votes on any changes, that owner would have voted against the bylaws restatement.
What happened instead is that the Vote-No-on-bylaws-restatement-groups were steamrolled by more than 80% of owners who voted and passed the bylaws restatement, exceeding the 25% minimum of the total vote power.
This despite 3 Owner communications sent to all owners with an email address on file during the election process; most of the communications decried the bylaws restatement.