Greetings, I have found a bug.
When looking at the logs I came across this as a link:
Found in Akismet Database. Held for moderation:
When clicking it it doesn't redirect to the right location. The link points at:
http://website.com/modcp/moderate.php?do=posts
vs
http://website.com/messageboard/modcp/moderate.php?do=posts
Looks like it was hardcoded vs trying to pull the bburl variable.