It affects any and all types of post on all the boards.
For example, lets say we get a member and all of the sudden that member begins to spam the board with content that breaks our rules, and a Moderator proceeds to intervene by either editing/moving/removing the post(s)... the software is designed to detect these 'Moderator interventions' and the more 'interventions' are accumulated the higher the chances are that the software will automatically moderate any and all posts from that member for several hours/days.