I believe HN automatically deletes numbers from the start of titles, on the basis that "7 weird ways to look younger" conveys no more information than "weird wa

I believe HN automatically deletes numbers from the start of titles, on the basis that "7 weird ways to look younger" conveys no more information than "weird ways to look younger" but is more clickbaity. It actually lets the original submitter go and manually edit the title to say what they wrote the first time, but I guess lots of people don't know, or don't notice that HN changed it.