I can confirm that that was the general mindset back then, and I think that's what made the project last for 20 years. I myself ended up doing some monkey-patching for the admin interface on 0.92 (or 0.91? it's been a lot of time since then), all as the result of me going through the source-code. Definitely not the cleanest solution, even back then, but it made one getting to know the underlying code so much more.