It's a superstitious leftover of liberal conditioning, some people treat socialist literature like it's the Necronomicon, that if they read too deeply or too long something essential about them will be altered, that their personality will shift to the point they can no longer relate to family or friends, for many of them its more comfortable to simply embrace an online identitarian posting style "socdem, demsoc, Trot, etc" and engage the world thru memes, historical osmosis, and intuition, it's complete nonsense and naturally leads to splintering, infighting, and polarization

The crux of socialist literature is the construction of a set of analytic tools and frameworks that can allow one to successfully study, predict, and interpret the specific historical socio-economic reality we know as capitalism, it's an ongoing evolutionary process built brick by brick, but some people prefer to stumble around in the dark accidentally rediscovering insights that were analyzed, practiced and made redundant a century ago