I get that this is a difficult situation for a small developer, but ending with this line did not fill me with confidence that the problem is actually resolved and make me trust their software on my system.
The odds may be better if you operate the way OpenSSH does: move slow, security first, architect everything to be very difficult to attack. But if you're building a text editor, it's not your mindset, and probably never will be.
However much the code is hidden and obfuscated, some parts of the source code are going to be looked upon.
For a binary, none, ever, except in the extremely rare case that someone disassembles and analyzes one version of it.
The fact that open-source doesn't coincide with security doesn't mean that it isn't beneficial to security.