well, theoretically at least, you are breaking up the colloids which can affect mouth feel if you water down any beer post boil. Maybe it is not a genuine concern. I personally feel that you are best topping off before flame out if ever.
This section allows you to view all posts made by this member. Note that you can only see posts made in areas you currently have access to.
It could be ergot, in which I wouldn't brew with it (but would definitely eat it).
I've frequented that forum several years ago when I got my Class A.