Why do you think HN is a place to engage in a productive (as the definition suggests, necessarily means results in something) discussion that would improve BART? Do you think this audience is in any way qualified to discuss the monetary or tech troubles of a uniparty government run service?

Instead, we could have an interesting discussion, maybe even one involving technology, that nerds would enjoy!

You don't have to be an activist wherever you go. In fact, it's almost alway inappropriate soap boxing/virtue signaling.