You don’t have to look very hard to see that it happened well outside of my guild alone. In fact, some people even suggest that Blizzard went too far with the ban waves.
https://www.reddit.com/r/classicwow/comments/s2yv8i/so_half_of_jomgabbar_just_got_banned/
https://www.reddit.com/r/classicwow/comments/137s0v8/blizzards_priorities/jiviecn/
https://us.forums.blizzard.com/en/wow/t/gold-buying-ban-waves-killed-som
I’ve seen people say that Blizzard isn’t harsh enough with their punitive action against gold buying, and I would completely agree, but I don’t think I’ve ever seen someone suggest in earnest that Blizzard did literally nothing at all, lol.