No one apparently. Why do you think people are going to be attracted to your group if you don't make an effort to block out spam or deleting spam posts. Of the most recent posts, I counted at least 60 spam on the first 8 or 9 pages alone.
This group is kinda like the ugliest house on the block, the one with the lawn never mowed, and covered up with weeds 6 feet tall. What makes you think that people are going to want to visit?
Signed,
Another disappointed wine maker