He might be joking or just blindly reading this directly from CKpool:
Hashrates below 100GH are not recommended to mine Bitcoin as it is unrealistic they will ever find a block. Feel free to try them as a learning experience or proof of concept, but it is highly recommended you don't thrash such devices and waste your time and energy.
@PocketAurora Bitaxe is running 1.2TH/s or 2.2TH/s at max it's 1,200GH/s and 2,200GH/s it's more than 10x, which is capable enough to mine at CKpool solo unless you mine with any units that hash below 100GH/s.