When revision is deactivated under BuddyBoss> Settings> Forum the Forum log is still showing in the front end.

You can use the following CSS code to hide Forum Discussion Edit Log.

Please follow the steps below:

1. Go to BuddyBoss > Theme Options

2. Under Custom Codes, enable CSS

3. Append the following:

.bbp-reply-revision-log{
display: none;
}

4. Save changes 

Note: Any modifications are considered as custom work already. Know more about our Support policy here: https://www.buddyboss.com/support-policy/

Reference: https://support.buddyboss.com/a/tickets/231486