That's an effect called the autism vortex. Lolcows are inexorably drawn to each other, and the greater the concentration of retardery around a person the greater the effect will be, sort of like how mass forms a gravitational well that draws in more mass until it collapses into an autism black hole where no sanity can escape except as incidental lower forms of wisdom that aren't really useful for too much.
Chris Chan is a tremendous vortex center, DSP is as well, Ralph often is, tons of artcows are for tumblr types, deathfats are for slightly smaller fatalfats, any lolcow with a following will have a tremendous attractant effect on any similar tards in their vicinity. That is why Donald Trump is a strong vortex center, because he himself is a lolcow.
As for whether or not captain Josh is a lolcow, you can make your own judgements.