def leave_a_comment thing_id, text
      Module.nesting[1].logger.warn "leaving a comment on '#{thing_id}'"
      json(:post, "/api/comment",
        thing_id: thing_id,
        text: text,
      ).tap do |result|
        fail result["json"]["errors"].to_s unless result["json"]["errors"].empty?
      end
    end
def leave_a_comment thing_id, text
      Module.nesting[1].logger.warn "leaving a comment on '#{thing_id}'"
      json(:post, "/api/comment",
        thing_id: thing_id,
        text: text,
      ).tap do |result|
        fail result["json"]["errors"].to_s unless result["json"]["errors"].empty?
      end
    end
[thing_id] +String+ fullname of a post (or self.post?), comment (and private message?)
 [text] :nodoc: