First off, I admit it’s a tough topic to bring up, so fair play for being upfront about it and tackling it straight on.
I think the posts so far have been honest, and I hope you take any criticism you might find in them to be constructive. It should be clear from them that there is no underlying current of members wanting you off the site.
I don't think you intentionally mislead people, but I think it can come across that way at times, with exaggerated claims and contradictory remarks. Saying one thing one week and going back on it a week later will leave people unsure of what is true and throw doubts over other statements and claims.
There have also been a few unsubstantiated comments made about general members criticising their behaviour which, even if true about one or two members, shouldn't be applied to all, and is hardly likely to receive favour. And I think some cases of name calling can be seen as petty and disrespectful.
I hope you don't take this too personal, most of us are probably guilty of it; I know I am at times. But you've asked, and I'm giving you my honest answer.
And remember that written language can be very easily misunderstood. For example something that might appear an insulting in writing, in a spoken conversation when accompanied by a smirk might well be taken as friendly slagging.
Your enthusiasm is unquestioned, and it would seem pointless to leave the site. It’s not a car for everyone, but despite that, I think the majority of members want to see this turbo on the road and have show genuine interest in it. So just take comments with a pinch of salt, be aware of posting comments that people might find (or misinterpret as...) insulting, and get that tubby on the road.