Unlimited expiration

I'm using the overly-complicated Aggregator2 on a 4.7 site to grab my Digg/Flickr/Google Reader/etc. feeds together on my personal site so I have a listing of where I've been out on the Internet. The reason I'm using A2 for this is because the internal aggregator forces deletion after 16 weeks.

The idea of keeping this information is so that I'll have a copy of the data on my site forever, rather than presuming someone else will have it, so auto-deleting doesn't make sense.

So, I'd like to request that Aggregator have an option to not delete anything, but horde data like the world's about to end.