If you're a member of +2 group, your patches will be merged
immediately and you can review others' patches (+1 people) and reject
or accept them:
No, if you are member of the +2 group means you can accept and merge any patches. However, you should *not* merge *your own* patches (unless they are trivial updates, such as i18n or family files), so that other people can comment on it before the patch is merged.