Hi,
In ED, when setting the category permissions, if one removes public or guests from:
'Who can view discussion in this category' and 'Who can view replies in this category'
then those user groups are correctly blocked from viewing or replying to discussions. However, if a reply is marked as 'Accepted' then that reply become visible even to public or guests. Removing the 'Accepted' designation once again hides it from those groups.
I would think that Accepted replies should be hidden just as any other reply would be based on the ACL.
Jordan