It looks like we're getting too many actions logged for cookie blocks. Let's check the logging code and make sure that only actual editing actions are being logged.
So this already seems to be true. There are multiple records when the same IP tries to edit repetitively. I don't believe that is a problem. The data looks solid. Here's the query I ran to find distinct cookie-blocked users so far.
mysql:firstname.lastname@example.org [log]> select date_format(timestamp, '%Y-%m-%d') date, event_ip from CookieBlock_16241436 where event_is_cookie_block =1 group by event_ip;