HN didn't have a significant increase in traffic due to covid compared to other sites, hence the more submissions didn't lead to more traffic. OP dropped also submissions that didn't hit the frontpage by removing those with less than 10 comments. So the 19% more submissions couldn't influence the result. And even if, you'd still have 19% vs 40%.
Only counting posts with 10+ posts does not guarantee that the baseline is the same for the two groups. You seem to imply that the number of posts that reach over 10 points means they reach the frontpage and that the number of posts that reach the frontpage is always the same during two time periods of the same length. But I don't see how either of these two assumptions has to be true.
The problem with the "19% vs 40%" comparison is that it does not compare the same thing. According to this article:
19% is the increase in total posts
40% is the increase after posts with less then 10 votes have been removed AND posts without the negative keywords have been removed.
This comparison is not the right one. Either posts with less then 10 votes need to be subtracted from both groups or from none of them.
Apple is a bit naive. How will they block adtech companies fingerprinting TF out of users?
There's too much money on the plate. Companies such as Adjust have fingerprinting tech and announced this as one option against Apple's move. All GDPR compliant because they don't need to get user's approval but their customers need to. And do their customers ask for approval before fingerprinting? Isn't the approval not often mandatory for using the app? Or somewhere buried deep in the Privacy Statement and given afterwards? And if customers just fingerprinted without approval how would Apple ever find out that Appsflyer or Adjust just were used to fingerprint and to track you until you get your next iPhone?
If Apple was serious about privacy they would have detected and banned anyone using fingerprint SDKs. As sad this sounds for most users: Adtech won't die, Apple will rather make fingerprinting tech even stronger.