Digg vs. Shared hosting: 1 - 0
Ever noticed how many websites you try to visit from the frontpage of Digg are down or load very slowly? This isn't coincidence of course: you're one of the thousands and thousands of visitors to that site in an extremely short amount of time.
The problem about some sites that get on Digg frontpage is that they're on shared hosting, and once their company figures they're making the server unstable: suspend it.
RandomBase once got (for whatever reason, but it sure helped) somewhere high on Stumbleupon and the result can still be seen on our homepage, the second line under statistics:
Most users ever online was 424 on 03/16/08.
That's a lot more than our 30 - 50 average we have throughout a normal evening. Luckily we didn't get suspended (that was only later after RandomBase started growing like mad) by our shared hosting provider but I received a very threatening mail that night... If we made it for some reason on Digg homepage on 3 march, then RandomBase wouldn't exist anymore, at that time we couldn't afford a dedicated server like we have one now, and losers as we are, wouldn't have tried continuing this project.

My mom told me I wasn’t a loser…
I recommend a WordPress plugin called wp super cache. It prevents this problem by caching your pages as static pages so that your bandwidth is much less, etc. Your page loads will be faster too.