The simple and clean design is actually what I like best about the site. I'm sure you've seen www.startuply.com (which is amazingly down right now because of an asp.net web.config error, wow!) That might be a good source of job leads for your crawler.
I also really like how you link to the companies website and not to some 3rd party job posting. Have you thought about adding more info to the start-up profile page on your site?
You're trying to make it seem like the time he invested in it wasn't worth it or that he was too slow.
You can do this in 30 minutes? Really? Prove it to us. You have 30 minutes, replicate this by "script/generate a few scaffolds, throw in a has_many or two and maybe a belongs_to here or there, code some simple erb layouts and BOOM!" then give us a link.
Everyone can look at someone else's work and be a critic. And, that's fine. But blatant criticism and ripping apart work that took time for no apparent reason is, at least in my book, terrible.
I also really like how you link to the companies website and not to some 3rd party job posting. Have you thought about adding more info to the start-up profile page on your site?