The only thing you're being "accused" of is your claim of being trustworthy, which you yourself just stated below that you're not:
Yes, I may not yet a very trustworthy manager
Nobody is calling you a scam, but that fact that you're claiming to be trustworthy when that's something you haven't earned here. Maybe after you've done a lot of deals here and acquired some reputation then you can call yourself trustworthy but you just saying "I'm trustworthy" isn't how trust works.
Lauda said that there's something shady with my service, I just want to clarify what is it. I just want to tell to everyone that they can trust me and it's up to them whether they trust me or not. So what's the big deal here?
You seemingly don't want to understand what either of us are saying. We've already clarified what the issue is:
You're claiming to be trustworthy.
We're saying you're not.
You're now saying you're not.
That's what's the issue here.
Sure, people can make up their own kind on whether they trust you but they can do that without you claiming to be trustworthy. In my opinion someone claiming to be trustworthy when they've displayed nothing to back that up is both questionable and very naive.