Scatolinguistics

Jim McCawley (1938–1999, professor of linguistics at the University of Chicago, who wrote his scatolinguistic treatises under the noms de plume of "Quang Phúc Đông" and "Yuck Foo", both of the fictional South Hanoi Institute of Technology) is credited, on page ix of the preface of "Studies out in left field" as having "created the interdisciplinary field[s] of pornolinguistics and scatolinguistics virtually on his own" in 1967. Technically, scatolinguistics is the study of the words for various forms of excrement (compare scatology). But, given the lack of any cognates such as "pornolinguistics" (despite the above) or "coitolinguistics", it has come to cover the study (including etymology and current usage) of all rude and profane expressions.
How linguists view the field.
Although most (if not all) of the words that might be termed "scatolingual" have been thoroughly studied and described by linguists, "scatolinguistics" is not generally regarded as a peer-reviewed area or classification of linguistic study. Further, the etymology of this term has been criticised as being more humorous than accurate or appropriate for the range of words it is apparently meant to include.
How the public views the field.
The attitude of the general public towards the field is often to treat it as humor, partly because it is a rich vein for comedians such as George Carlin, or as a minor entertaining diversion. Viz magazine's Profanisaurus is a detailed example. There is definite public interest in the field, although the relation to humor has meant that entertaining false etymologies (such as the "for unlawful carnal knowledge" false etymology) have tended to be more prevalent in popular culture than the results of serious linguistic analysis have.