Only in those areas where sewage is considered an art form, e.g., the USENET newsgroup alt.tasteless. Usually, if you feel that cursing in some form is required, it's preferable to use amusing euphemisms like "effing" and "sugar." You may also use the classic asterisk filler -- for example, s***. The archness is somehow appropriate to the net, and you avoid offending anyone needlessly. And everyone will know exactly what you mean