If it was intentional a more informative error should have been used. I'm sure the ops team at mtgox is quite experienced but these basic errors pages seem like a big oversight once you are running a fairly high trafficked site.
I've used MtGox a bit over the past weeks and there isn't much that gives me reassurance that they have a good technical team.
Frankly I find it terrifying that they are dealing with so much money daily. My one hope is that the recent rise in price will attract some better players to the ecosystem. Would love it if blockchain.info did as they are the only site that seems clueful, though I can understand why the regulatory burden would give someone pause.
