It wasn't dumb IMO. The speaker being an important, famous guy in the cryptocurrency world doesn't make him less of a nocoiner if he holds no btc. Even further, if hypothetically someone held, say, 100$ of shitcoins and 0.5$ of corn, I would stretch the term a bit and call them shit-nocoiners. On the contrary, someone holding 100$ of btc and 0.5 of shitcoins could be called a no-shit coiner.