Welcome to Dreamhost.
Considering that Dreamhost is one of the largest hosts in the world, hosting almost 370,000 domains, I'd say that not many people take sites like that seriously.
There are thousands of hosts out there and no one is held here against their will. We are all aware of the competition and are here by choice.
I saw that your ex-host is the one that pointed you to that site, which is an act of desperation from a host that knows they can't compete. Sounds like you did the right thing by leaving... and maybe it's time for them to go back to flipping burgers.
Anyone can throw up a this-company-sucks website, but it doesn't make them an authority on the subject. It's usually the opposite, as many (but certainly not all) people that have problems with companies do so because they fail to read their policy, can't follow simple rules, spam, abuse the shared environment, etc... then throw a tantrum when they get spanked for it.
It reminds me of how criminals tend to hate cops.
Dreamhost certainly isn't perfect, but neither is any other host on the planet. If you find a host that doesn't have any complaints, it probably means they forgot to put an order form up on their site.
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