MyBB Community Forums

I see that newly registered users get too many perks in the default group. They can delete and edit their post, among other privileges. I am trying to put them in a group ( already created custom group through ACP ) after registration. But I am not sure how to do it. Any help will be great.

"registered" group is the default and this is the one in which all new members must be. Change its setting to match what you do for new users.
And create a new group for older users, with more permissions, and use the promotion system to have experimented users in this group.