failure of automatic censoring system

any appropriate word including “s.t.f.u.” (without the periods), such as

boa*<strong><em>l (boast.ful)
wi</em></strong>*l (wist.ful)

in any case, no one normal would ever actually type s.t.f.u. as an expletive

oh yeah? S T F U is shorthand for an expletive, no?