This will make it as when a person joins the forum they will be in a certain group.
Go to Users & Groups>Group Administration
Make A New Group Called Something Like "Forum Members",or if you made one already click the edit icon that looks like a gear.
Fill in the stuff and where it says "Group auto-subscribe :" choose yes and where it says "Minimum Posts :" leave it at 0.
When someone joins your forum it will automatically add them to that group
Go to Users & Groups>Group Administration
Make A New Group Called Something Like "Forum Members",or if you made one already click the edit icon that looks like a gear.
Fill in the stuff and where it says "Group auto-subscribe :" choose yes and where it says "Minimum Posts :" leave it at 0.
When someone joins your forum it will automatically add them to that group