We used to keep our spamblock log as well.
Ours hit more than 200 MB!
We use the Akismet API in Spamblock combined with the ReCaptcha plugin as a one-two punch against blog spam.
We disabled the log over here because Akismet is pretty decent at catching 99% of the spam... sometimes though the occassional trackback ping spam occurs, and sometimes some comments are incorrectly marked as spam, but i think that is a small price to pay!
You can turn it off by configuring the anti-spam plugin through the admin interface.
Regards,
Garvin
# Garvin Hicking (s9y Developer)
# Did I help you? Consider making me happy: http://wishes.garv.in/
# or use my PayPal account "paypal {at} supergarv (dot) de"
# My "other" hobby: http://flickr.garv.in/
Yes, the file is purely for your own information, it is not evaluated by s9y itself. You can delete if if you don't need it any longer.
Same applies to the file via FTP.
Best regards,
Garvin
# Garvin Hicking (s9y Developer)
# Did I help you? Consider making me happy: http://wishes.garv.in/
# or use my PayPal account "paypal {at} supergarv (dot) de"
# My "other" hobby: http://flickr.garv.in/