Dr Sid PhD - If the report here was hidden and no action on the reported content taken, it means that the FMod who reviewed the report felt there was no action necessary for the reported situation. FMods are not required to post back here with an explanation as to why if they do not take any action.
If you disagree with the previous FMod's decision not to take any action against the post, that would be best brought to the
Forum Moderation Review
thread.