This thread sounds like self-publicity for the board...
Anyway, I agree with Negrek.
The "community" aspect basically means that unless you are one of the very few ultra overated "uber authors", you can basically forget this board ; you'll be mercilessly bashed by reviewers who I won't name but are nearly as harsh as the legendary Kyouji Kraw from ACMLM (and when you are compared to such an user, then it is that you are harsh to the point of insanity).
Still, if you have a rock-solid confidence and don't mind being ignored/getting stupid "look at advice for aspiring authors" posts shoved at you every second, then this board is a good place to go if you think that your fic is perfect but could be improved. The people here WILL find the flaws you overlooked, exhagerate it by 2000 times, and then flame you with it. Good stuff, really.
Anyway, now that my rant is over... I will admit that despite the overated uber authors, the uber authors' fanboys, and the newbie killer reviewers, this is an excellent place to post fanfictions... but since people here have very, very low tolerance, I'd suggest other sites if you're just beginning in fanfiction.
Oh and... if you feel like having a good laugh, you can always go through the fanfiction section and watch the newbie killer reviewers flame poor newbies while the fanboys keep bumping and praising fics with 2000 lines of description and two or three lines of overused, cliched, boring plot.
Yes, I am harsh... but well, whatever. People will probably hate me for this post... but whatever.
One thing I do like about this board is that as long as you put the rating in the title, you can pretty much max out the mature themes if you want... but the best is that not only can you post mature stuff, but your stuff can actually be REALLY mature (as in: mature themes used to enhance story AKA no mature themes just for the sake of mature themes) and not be ignored! In short, that means that the R-rated fic readers here aren't all hentai-crazy/violence obsessed hormone-driven freaks!
Finding sites that allow R-rated stuff AND aren't plagued with people who rate 5 everything that has one or two lines of sex/violence is very hard which makes this site, despite it's flaws, a rare gem.
Also, while I do bash the uber authors and their legions of fanboys a lot, the average, silent and non-reviewing masses are there, reading quietly... and as such, even if you don't get many reviews, it is nice to know that your fics are read and (probably) appreciated.
Well, that's all. That was my opinion.
Yes, I am hypocritical for saying that the site is bad in the first part, good in the second.
Have a nice day.