I also use bigfoot as my email address.

I find it very useful. My ISP changed many times as I changed locations, jobs and careers. My email stayed the same I just changed the forwarding address to what ever my current ISP was. I even forwarded it for a time to my gmail, hotmail accounts.

As for spam, I find I get just as much spam with my hotmail account as with my bigfoot email address. Spam filters catch almost everything.