They'll just be struggling under the weight of all the traffic brought in by the rapid price increase. Can you imagine how many new users are desperately trying to buy coins and older ones selling them as fast as they can? Bitcoin has been all over the media the past couple of days and these exchanges just struggle to keep running in hectic times.
Yes but it's still not acceptable, especially when it happens quite frequently.
They are supposed to be proactive and not to just watching the chaos and to wait if the problem will be fixed alone. I know it's more than buying a couple of servers but sometimes it makes us think that they just don't care about it or don't know how to resolve.
Imagine your bank website going down every month because most of the customers received their salary the same day.
I think that none of these exchanges is not actually ready for such a large increase in the number of users(Coinbase say 33 000 new accounts is open every day)and it has been shown at this time when most of them go down.
Was that reason only a huge number of users who were in panic after price start to go down or it's a synchronized attack maybe?We all see that there is big DDoS attack on bitcointalk yesterday and it is happening very often lately.
Exchanges should work constantly to prevent such problems,do they just not care or do not know how,the question remains.
@Lucius
It could be, and congrats to them for filling their members base, (of potential accounts to suspend later without giving a reason lol, hello coinbase)
The problem is that they perfectly know their customer's numbers are increasing, it's not something 1-month-old, so why not anticipate? The problem is not some DDOS, they have all resources needed to avoid this problem and if not it may be good for them to review their web security or close the shop.
With kraken and coinbase, each time there is a quick and big price increase/decrease you can be sure the sites are overloaded with people in hurry to buy and sell their coins, turning their website offline.
How ridiculous is it to know this but not improving your site? It's an old problem with kraken and coinbase like I said; to tell you i remember about articles suspecting them of price manipulation while it happens