You should avoid the overuse of exclamation points because you'll appear to be
a. shouting at the reader.
b. showing off.
c. exhibiting bias.
d. creating confusion

To be honest, all of those sound applicable. But since there isn't an all of the above answer, I'd say your best bet is either A or D. 

Your account is deleted, so i guess there's no point in answering. also the question was in the wrong subject. just an fyi: you can bold by using control+b. italicize by using control+i. and underline by using control+u.

What is the  venice film festival?