ALL of your answers are really good.!!!! 
Yes- taboo is anything not done in society or things that are HIGHLY frowned upon or just  flat illegal .... like Daddy / daughter ...or Mommy/ stepson or ...brother /sister or Master / slave 
 or nun/ priest ...lol .....or rape play which is a horrible sounding  phrase (consent / nonconsent is a better way to say it 
right ?) .....and this is just my definition of things , not a legal or actual definition. . .  
I love Daddy / daughter play but since I'm over 35 now, I can't find as many guys who love to do Daddy / daughter role play as - before ......but I still do some. I get requests for the Aunt / nephew or the Bad Step Mommy or Mommy's sons best friend who came over and more .....
The rape play - or consent/non-consent CNC.... is really hot to me ....but there has to be lots and lots and lots and lots of communication before hand...and it has to be a very trustworthy person. 
 A woman should NEVER NEVER DO THIS WITH SOMEONE SHE DOESNT KNOW HIGHLY WELL, and in real life...... I can't see this working in the hobby EVER!!!- ...since a person should NEVER do this with a stranger ! ! ! !   and then there are taboo things that I'm REALLY not into .... I can't think of any examples right now ..... 
the only example that I can think of is Diaper play. 
 
 
     
   Just No!!! .  No no no no!   That may not be taboo,  that may be a particular fetish or something??? 
Also I love your answer of HISTORICAL ROLE PLAY.... 
 
FASCINATING...... I LOVE THAT.....I MAY ACTUALLY TRY THAT ONE SOON. 
MMMMMMMMMmmmmmmmm... hot !   I've got a couple of Civil War ideas !!!! 
haha.   Have a great day everyone!!!!   Zena.