Ethereum Wallet- I am pondering

So do I hide my wallet string from website? I think we require best practices to protect ourselves. If Happy Everyday, charity I am admin of, Happy Everyday is a movement to access human enlightenment & love, accepts donations to my Ethereum wallet and string is visible on my website, then whose to say someone can’t input my ethereum wallet string and match that wallet to Happy Everyday? By doing this am I compromising something? What do I want to be concerned with? Constructive feedback is welcome. Only discuss ethereum and not ever converting it to any other currency because that is where I believe a currency loses its credibility.