I think the missed the "or" in "raised money, are bringing in substantial revenue, /or/ have a sizable active user base". Your B2B example is perfectly fine. And I think some of your other points are based on this misunderstanding, too.
I'm not allowed to say "I'm working on a startup?" - even though my cofounder(s) and I have poured tens of thousands of our own money into it and have been full-timing it for months?
Forgive me for being blunt: but this reads like whining. You want the your use of the word "startup" to automatically grant you some credibility, and are complaining about people who are trying to do the same.
You will find this in any community. You're not a real painter unless you [blank], you're not a real photographer unless you [blank], you're not a real writer unless you [blank], you're not a real programmer unless you [blank]. And now, you're not a real startup unless you [blank].