Patrick, your project sounds good. I wish you the best with it. You must realize that everyone coming to this site is here to read comments and news on Haiku - even with off-topic forum.
If you really want to attract users/developers to your project then post a story on OSNews.com and similar sites (general OS/software sites). That will get you greater attention and interest which will attract users and developers. There is nothing wrong with creating another OS which is unrelated to Haiku but promoting it on Haiku’s website is bad etiquette. That’s the reason why you will get negative comments from some users. For instance, people here prefer to stick with Haiku related questions, blogs and news.