I am Jon Hundley currently using this account and I am the founder of the company. Sometimes other people use our accounts for support here.
1 - You are seeing what is called a false positive. I searched around and could not find how to submit a false positive to these two companies so they can fix it. If you can find the "false positive" submission URL for these companies please post it here I will submit it. Then these warnings will probably disappear.
Every time we release an update we upload it to VirusTotal and usually one or two obscure companies give a false positive. If we had to wait until VirusTotal was clear for every update we made we might have to wait months, or maybe never make a software update at all because some of these companies have no ways to submit false positives that I could find.
2 - Since that one HackerNews comment in 2014 nobody has ever expressed concern about GlassWire or requested an About page. I think this is probably because we were reviewed in a lot of other popular well known sites. Maybe we will consider an "About" page for our 2.0 website refresh, but I'm not sure what I could write there to make anyone believe our software is safe if they don't believe the other online reviews about us.
I guess maybe if our software was completely open source then that would be a solution, but our software is closed source.
Our Windows software does check our update server for updates, along with checking its malicious host list and updating it. You can make GlassWire block itself if you don't like this.
Our Android app uses absolutely no network activity at all and you can confirm this. We make money only through sales of our Windows software, but we may add in-app purchases to our Android software in the future.
Our company focuses on privacy and security, not selling your information to others for profit.
3 - We recently did a poll to see if more people think GlassWire is more of a network monitor or a firewall. Currently I think GlassWire is more of a network security monitor than a firewall. No, we don't support host blocking currently. We use the Windows Firewall API for blocking so you can look at the changes we make to the Windows Firewall yourself and see if it's dangerous or not.
Thank you for considering upgrading to Elite.