There's a second component to the "Beware" of this forum, and that's "Background check". If you're a new company then the BC portion becomes espeically important.
There are TONS of threads here for totally legit entities. I check this forum out to find out which agents people have gotten responses from and which ones they've been dodged by, or which ones turned out to be frauds. Established companies are discussed here as well as upstarts. The presence of a publisher or agency here isn't a denouncement, it's a topic.
When you publicly go on a writer's board that has the reputation of looking out for the writers' interests and advertise a new company, you have to expect scrutiny and questions. If you have answers YAY you.
So far you seem to have done what you can to answer with the information available to you - though (and I hope you don't take this the wrong way) maybe you shouldn't be the one putting feelers out if you don't have the pertinent information on the business side. Good intentions are a great start, but they dont equate to actual statistics.
The automatic gut check response to criticism isn't going to help your position, neither is skewing that crit. further than it went. I know this company is yours and you're protective, but you have to understand that no one is rooting for you to fail. You're going to have criticisms in this business (starting the second you send out the first rejection notice if not sooner) and dealing with simple questions isn't the hardest form you'll face.
No one's rooting for you to fail here (I think it needed repeating); quite the opposite. I hope your business takes off for you and anyone who signs with you, but it's best to get those bumps ironed out now.