[wwkeyboard]

> I can't imagine any combination of individual situation and risk tolerance that would make holding a large amount of a single publicly-traded stock an optimal investment strategy.

It can make sense if you have a significant impact on the performance of that stock. It's pretty common to give the C-level executives a lot of stock in the hopes that they drive up the value of that stock. This is also what activist investors do; buy a lot of stock, get a position on the board, try to drive up the share price.

However, anyone taking advice from HN comments isn't in one of these situations.