I don't think that's a reasonable conclusion, given that HN is pretty specific about what title to use. From https://news.ycombinator.com/newsguidelines.html:

> Otherwise please use the original title, unless it is misleading or linkbait.

Basically, the HN title should be the page title (with a few exceptions noted in the doc above). The whole point is not to use the title to do what you're proposing and apparently, observing.

My interest wasn't "How do I get something to rank on HN?", it was "I want to encourage people to submit things that they discover and love, not repeatedly submitting things they're affiliated with." I may be in the minority, though.