Restructured the project structure back to the way it was, there's no reasonable way to split the modules

src/NadekoBot/_common/Yml/CommentsObjectGraphVisitor.cs

@@ -0,0 +1,29 @@
+#nullable disable
+using YamlDotNet.Core;
+using YamlDotNet.Core.Events;
+using YamlDotNet.Serialization;
+using YamlDotNet.Serialization.ObjectGraphVisitors;
+
+namespace NadekoBot.Common.Yml;
+
+public class CommentsObjectGraphVisitor : ChainedObjectGraphVisitor
+{
+    public CommentsObjectGraphVisitor(IObjectGraphVisitor<IEmitter> nextVisitor)
+        : base(nextVisitor)
+    {
+    }
+
+    public override bool EnterMapping(IPropertyDescriptor key, IObjectDescriptor value, IEmitter context)
+    {
+        if (value is CommentsObjectDescriptor commentsDescriptor
+            && !string.IsNullOrWhiteSpace(commentsDescriptor.Comment))
+        {
+            var parts = commentsDescriptor.Comment.Split('\n');
+
+            foreach (var part in parts)
+                context.Emit(new Comment(part.Trim(), false));
+        }
+
+        return base.EnterMapping(key, value, context);
+    }
+}