I don't really suggest using an ini file for badwords.
You can of course, use a global variable instead. For example:
alias addbadword { set %badword $addtok(%badword,$1,124) | viewbadword }
alias delbadword { set %badword $remtok(%badword,$1,124) | viewbadword }
alias viewbadword { tokenize 124 %badword | echo -ag Your badwords are: $1- }
alias cursefilter { return $regsubex($1-,/( $+ %badword $+ )/g,<censored>) }
/addbadword somewordhere; -- This adds "somewordhere" to your list.
/delbadword otherwordhere; -- This deletes the word "otherwordhere" from your list.
/viewbadword; -- This shows you your badword list.