I replied to that thread.
OP was claiming to be working on a static HTML-serving search engine. They suggested that because it’s just HTML and CSS, and that interested parties can use Inspect Element to read the network requests, that it constituted “open source”.
Commenters then got on his case about not open sourcing the server backend. OP defended that choice saying they didn’t want a competitor taking their code and building a company off of it that would “drive [them] out of business”. Uh-huh. So, proprietary software, then. Bye.
Unlike Python, most languages do not endorse a specific concept of style. You’re free to dabble in all the bad style choices you like, on the off chance that once in a blue moon they prove to be situationally useful.