Suppression implies intent, no? There was/is no such intent. The submission got penalized by software for various reasons (mostly unrelated to the topic), as well as flagged by users. We've turned that off now.

If, instead of assuming sinister deeds, you (or anyone) would simply give us a heads-up at hn@ycombinator.com, we could fix it sooner. This is what eventually happened.

Edit: it turns out a submission of the original report has been on the frontpage for the last 9 hours, so I've merged the other threads into that one: https://news.ycombinator.com/item?id=50101813.