I submit that social media content models, like living species, survive and compete by adapting to environmental and population pressures. The content-life-forms classified here as demolisticles suggest a lemming-like survival strategy that is not particularly effective and contributes little to the ecosystem as a whole.
To me, the interesting part is that, while broad appeal was often a critical success factor in pre-Internet publishing, recently social media have enabled content providers to realize a measure of popularity within very narrowly-scoped audience demographics. Such popularity does not emerge from intrinsic content value, but rather from specialized audience-specific references and relevance to a group identity.
40 Signs You Can Publish Any Old Crap Nowadays as Long as It's Well-Targeted