Obviously, laszlo didn't know Bitcoin would be this big today. He said it in one of his comments. Laszlo first made the call for the pizza trade in this forum according to this post Pizza for Bitcoin but never got any member to buy it. At a point, he asks "So nobody wants to buy me pizza?  Is the bitcoin amount I'm offering too low?" And then went ahead to reveal that he just wanted to put it on record that he bought pizza with Bitcoin and not that he was pizza crazy. It was a fun thing for Laszlo. He later sold it outside the forum a few days later.

However, I am sure (given the present circumstance) he is harbouring an element of regrets at the moment somewhere in him for flushing away 10,000btc. In today's worth, it's 10,000 * $38,000+. Even Bill Gates would be envious of such huge stack.

laszlo, a miner and programmer, was a member of this forum in its early stage from 2010 and became inactive in November 2017.