I read your informative post with interest. I have a few questions.
1) Is your Zip cracking software likely to be effective against, say, a 32 character (pseudo) randomly generated password? I’m talking about current WinZip versions, using AES-256.
2) Weren’t the 7Zip vulnerabilities fixed with version 16? I ask because I honestly don’t know. The linked article suggests they were patched.
I’ve made a mental adjustment about the subscription model. I think it’s a pretty good deal when compared with other premium encryption products. Over the past 20+ years I’ve spent way too much on encryption software because I didn’t know any better. Trust is a big issue and I trust that Axcrypt is secure and that any discovered vulnerabilities will be fixed. I don’t want to worry about things like that. That’s worth something.