I had to post in this old thread because I thought it was amusing. You could ask that question "Am I STILL a Kiddie host" but what actually is a "Kiddie Hosts". I don't really believe in the term.
The phrase was invented by mid-size collocated companies and spineless members of the WebHostingTalk community

(Oh I have a few names in mind :p None which I would state)
Some people will interpretive it by age, maturity or independence.