Subversion at the spam factory?

So this is new, at least for me — the latest batch of a few thousand spam comments (adding to the pile of 5,095,703 caught so far) pretends to come from people using negatively-evaluated pseudonyms in Spanish, like caca, ladrones, or indecentes:Or mierda, corruptos, etc.:Does this refer to a Hispanic inversion-of-lexical-values subculture, like English sick [...]