That's exactly what I'm saying. The number of domains/users doesn't tell you anything. Even if the server is heavily loaded, it could be from one person that's trying to run the next Google from an $8/shared hosting plan... that is about to be told it's dedicated server time.
I have over 100 domains that do basically nothing. Some are mainly for email, some are variations of one name that 301 to the same site, some are projects that constantly get delayed because of laziness, etc...
Even with only 50 customers like me, you could have a 5,000 domain server that isn't using any resources. Or, you could have 1,000 users with 5 quiet domains--same thing.
I'd say that most people here use less than, or around 1% of what's available to them. People will buy the big plans because it's more for the money, even if they never intent to use it.
They've moved people until they get their load sorted out, but if you run a site that can't stay within your part of the resources, it's time to go with a dedicated server.
For all I know, they could have one server with 3 people on it that are using everything they've paid for. Luckily, the thousands of other people that don't use anything they're paying for more than make up for that.
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