@amie @mcc @mattdm There are subreddits almost like this:
People post photos and videos of their keyboards, often with clacky sounds. Many are even custom built, especially in the ergonomic keyboard subreddit.
There's also http://www.onlykeebs.com/ but it's mainly just filler content. I guess someone had the same idea, but didn't fully follow through, except with a domain name and placeholder page.