The forum software which outputs those silly outputs does provide value. For instance, Reddit and I established an agreement where if I pay even more of my time to look at their ads, which gives them value, they will provide me with those silly outputs, which I find valuable. It has been a mutually beneficial trade.
Should the cost of using Reddit go higher, as it seems it will, then the calculator will come out and I will have to determine if the cost is still in line with the benefit. With only 10% of the value coming from there, there isn't a whole lot room for them to play with, especially when you have HN graciously offering essentially the same service for a much lower cost.
