diff --git a/.vale.ini b/.vale.ini
--- a/.vale.ini
+++ b/.vale.ini
@@ -20,6 +20,7 @@
 FreeBSD.Contractions = NO
 FreeBSD.Hang = NO
 FreeBSD.Hyphens = NO
+FreeBSD.Pronouns = NO
 FreeBSD.SuperfluousOptArgInLinks = NO
 FreeBSD.SemanticLineBreak = NO
 FreeBSD.Spacing = NO
diff --git a/.vale/styles/FreeBSD/Pronouns.yml b/.vale/styles/FreeBSD/Pronouns.yml
new file mode 100644
--- /dev/null
+++ b/.vale/styles/FreeBSD/Pronouns.yml
@@ -0,0 +1,24 @@
+---
+extends: existence
+message: "Avoid pronouns such as '%s'."
+ignorecase: true
+level: warning
+nonword: true
+tokens:
+  - (?:^|\s)I\s
+  - (?:^|\s)I,\s
+  - \bI'm\b
+  - \bme\b
+  - \bmy\b
+  - \bmine\b
+  - he/she
+  - s/he
+  - \(s\)he
+  - we
+  - we'(?:ve|re)
+  - ours?
+  - us
+  - let's
+  - you
+  - yours?
+  - you'(?:ve|re)