The following came up when I searched google for 'perl guru'

Looking for a perl guru - PerlMonks Jun 15, 2018 - 4 posts - 3 authors

What I found strange is that google's search results present this link with the date Jun 15, 2018 whereas the actual node's newest content is from Mar 20, 2002. It also misses the author count (3 instead of 4) but succeeds on the posts count (4). But it is the date mismatch I find the most important, it happened to me several times already.

This could be entirely google's mistake, or a PM hack-not-bug :), I am just reporting it.