I've never found it to be intimidating. Then again, that is a very subjective criticism. What I find "intimidating" about a website or a publication might come perfectly easy to somebody else.
Here's my advice when it comes to any sort of "labor of love" type project - take all criticism and suggestions with a grain of salt unless what is being said quickly strikes you as valid and/or a good idea.
Everybody's a critic. It is impossible to please all people - so don't put yourself through the frustration of even trying. And no matter how clear you are in your writing somebody is going to read it the wrong way and get confused or perhaps even angry. No matter how easy you try to make site navigation there are going to be some people who simply will not "get" it.
As for suggestions - good ideas are always a dime a dozen. The challenge and the hard part is execution and bringing such ideas to fruition. it is easy to throw out suggestions when somebody else has to do the work and/or find the time and money.
The single most important thing to ask yourself if you have a project such as this is what do YOU value, what do YOU wish to accomplish and what do you ENJOY doing? For example, supposed what gets you excited and what you look forward to doing is adding new content to the site whereas the data entry work of reformatting old content is something you find tedious. If that is the case, then you would probably be better off spending most of your time putting up new content even though you might agree that it would be desirable if the old stuff were reformatted. If somebody REALLY thinks that a certain change would be a great idea and it is not something you have much time or desire to do, then maybe THEY need to step up and volunteer or make a financial contribution for you to hire somebody to do it.
Since you are the one who makes this site possible in the first place, that should be the filter that all ideas and suggestions should first pass through. The single biggest danger to a labor of love project is when it is no longer enjoyable to the person who makes it possible. To the degree that the project becomes a "chore" or a "duty" is the degree that the project is in jeopardy.
I am sure if I took a close enough look at the site I could come up with some ideas on how to improve it. And, perhaps some of them will be good ones. But my overwhelming thought whenever I look through a site such as yours is gratitude that somebody took the time to do it in the first place.