Answer:
A: I believe this quote, "Promote what you love instead of bashing what you hate" means to instead of wasting time dissing the things/people that you don't particulary get along with, you should spread the word about the things/people you do enjoy being with, and let others enjoy what you enjoy everyday.
B: Promote: To support/encourage a cause, venture, or claim.
Bash: To shame/make heavy blows at something.