The key word the OP mentioned is <i>only</i>:<p>Here is his example account:<p><a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;submitted?id=grisanik" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;submitted?id=grisanik</a><p><i>All</i> submissions are from one domain, and there are barely any comments.