Mmm, in a way.
FH in one way was my gateway towards online communication, so yes, i've learnt many things that are tied with social skills from FH; may it be social skills in general or writing skills (from roleplaying). Although, these skills that i learnt in FH are mostly inapplicable in real life, because there is a massive difference between talking with faceless people on your computer screen and talking to an actual person in real life face to face, and i don't write literature that often. Maybe FH has helped in communicating through text, but not so much for actual verbal communication.