yeah facebook changed a lot; no more highlight page, cant share ppl comment now, confusing with live and news feed, and can be mistaken as spam if you are active in fb when you join groups, comments , share photos.... and the fucking hide button is so big that once ppl get piss off they can hide u easily.
from my initial testing, fb is now heavily focused on events, and dont bother with groups but straight go to fan page as the option to status update and mail them directly to their inbox is priceless now.
ill do more testing tomorrow as it is late here but at one glance, spam, tagging, and all those viral activities are long gone but with this new layout, if you are building a fan page and have active discussions, fb will put your post to the top immediately for everyone to see.
good thing i invested in creating lots of dummies accounts.