You haven't set logging on any rules yet, so you won't see anything on pflog.
At the least, set logging on the block rules like this:
Code:
block drop log all
block in log quick from <abusers>
The log statement goes directly after the direction keyword (in or out) or after the action keyword (block, pass, rdr etc) if you aren't stating a direction. Then you will find out what is happening to your packets.
Unless you are handling gigabytes per second through your firewall, you should always log blocked packets