To my knowledge, you need to go back to the previous page (from the blank one) because of the hidden posts. Supposedly the post count is off because of the hidden posts. I assume if the Mods change it back and you want the spammer's posts to be visible, you'll have resolved the issue. That's just my thought on the matter. But I do know that the issue is caused by hidden posts so my best bet is to just deal with the "glitch" or see if the Mods can reverse the changes, if they bother you that much.