This is exactly what I was thinking when I read the article about naming phones with cryptic numbers earlier. Random strings of vowels in non-words are just as memorable as KR344-a I'd say.
Hmm, maybe I should register kr344-a.com just to be safe though.
And easier to spell, to boot. Many of these names would be hard to guess how it is spelled; I know if I heard of reddit by word of mouth and didn't have it spelled out for me, I'd be looking at readit.com or read-it.com wondering wtf was so cool about it. I have absolutely no trouble remembering xkcd.com, and it's just a random string of characters.
Hmm, maybe I should register kr344-a.com just to be safe though.