Do not generate anymore old blog posts

site.py

@@ -216,6 +216,8 @@ def blog():
     published_en = [post for post in published if post.lang == "en"]
     note_list = Note.all(source=DAVID / "stream" / "2019")
     for previous, post, next_ in neighborhood(unpublished, last=posts_2012):
+        if post.date.year < 2018:
+            continue  # Speed up + do not overwrite old comments.
         if post.is_draft:
             print(f"Soon: http://larlet.test:8001{post.url} ({post.title})")
         # Detect if there is code for syntax highlighting + monospaced font.