I don't think Gradle needs to spam HN for publicity. It is the #2 (subjectively ranked) build system for Java and other JVM-based languages, and is arguably on the cusp on overtaking Maven for the #1 spot if it has not done so already. It has a pretty tight relationship with Spring and Grails, two of the top three frameworks for doing Java web development.

If you've done any real Java development within the past five years, then you at least know what Gradle is. If you haven't, then you won't, and that is perfectly okay. Frankly, this maxim is true of half the announcements on HN. If I don't recognize something at all, then usually it's a random Rust or Julia thing... and I've grown to conditioned to simply ignore it and skim onward.

I do agree that any public announcements SHOULD include a blurb for the new people who are hearing about the subject for the very first time. As far as HN irritations go, however, that bothers me a lot less than the tendency of announcement threads to turn "meta". Fewer comments on the subject matter itself... more comments on the announcement’s font selection or color scheme, copy verbiage, logo design, or just completely random digressions to discuss why Rust does it better, etc.