Out of curiosity, what causes you to be "comfortable" (or not) with a service keeping a record of your IRC activities? I assume you have private networks in some form?
I'm not judging, i simply ask because a lot of people are connecting to Freenode/Freenode-like locations where he majority of the channels are already logged 24/7 by you, countless others, and bots publishing the content to the web.
For me, it's only really useful with a backlog of perhaps 7 days, the rest I would like to have permanently deleted, it would make me feel more comfortable using the service.