Is f-u-c-k a bad word?

Is fuck a bad word ? It's origins don't come, as is popularly believed, from 19th century English prisons , fuck being an acronym for "for unlawful carnal knowledge" . The shorter f.u.c.k. was supposed to have been written on the inmates' clothing .
It actually comes from a pseudo latin word "fuccant" meaning , well ... to fuck and was spread in various forms in north european languages "fokken" dutch for thrust/copulate , focka , fukka and fock derivatives in other languages and all meaning broadly the same thing .
Do you use it ? If you were to write out the names of ten friends (include yourself) what proportion of them use the word occassionally ?