Yes, I also think so. It is not easy to operate a website but I think www.hiawatha-webserver.org is perfect, very informative and visibly. I commend your support anywhere in all forums. You do it very well. I asks the question, and often after a few minutes I get the answer, this can not be better!
I also noticed that the same people always ask questions and need less support, but I know exactly why... because Hiawatha runs perfect, the people have no problems with it. So, your project has succeeded in any case.
I have only one criticism, sometimes there are cases where you say "Hiawatha does not support them." I do not know if you tried desired by people functions in the Hiawatha to introduce, but I think this is very important for the development and competitiveness to other webservers, I have seen cases where people said "I think Hiawatha is very good and would remain in Hiawatha, but without these feature I am unfortunately forced to use a another webserver "
I thought you have the spammers under control.
Attempts to protect your forum with JavaScript, for example. to show captcha with enabled JavaScript only or simply deny access with disabled JavaScript completely. This should help
I have high hopes for your project and wish you great success.