I bought 0.00000000 BTC when I first learned abot bitcoin -- in nov/2013, when the price was ~1200$. So, even though my investment was fairly modest, and (as you already know) I have been able to double my holdings every day since then, I am still quite disappointed by the loss of almost 70% of the money that I put into this coin.
Time is money and you've invested plenty. I hope you are getting good returns on the time you've invested here.
Just as many are drawn to bitcoin for ideological/political reasons, many oppose it likewise. Stolfi often appears to be a calm and reasonable skeptic but every now and again his ideological investment in bitcoin failing creeps out with an emotional outburst. These people will likely be the last to adopt bitcoin and may only start using it when they have no choice as their future devices will depend upon bitcoin with or without their knowledge.