Replying to @Gazimoff@gamepad.club
Yes, I do receive replies concerning the security updates.
Often, it is simply a case of someone not being aware that there was an update because, for whatever reason, they missed the announcement. Other times — as shown in the screenshot, though I removed the names and URLs for privacy — I learn that some sites are managed by multiple people, and perhaps the person who handles the updates just needed a small nudge.
That said, the vast majority of people who receive a message concerning their site being out of date are often thankful to have been informed. 😇
