Last modified: 2010-05-15 15:41:05 UTC
On Special:Blockip kindly say that all you do is block the offender from editing articles. That way it won't come as a shock that the offender is still enjoying one's site to his heart's content according to a quick glance at one's apache logs, despite being "blocked".
... The page says "block write access"; not 'block all access'. Seems fairly clear to me.