Superhero fandom was 95% male - for all I know, it still is - so I think it was not very interested in slash. Femmeslash, now... but I quit seven years ago, and heaven only knows how things have changed since. But as for fighting and ferocity, you should read some of the old COMICS JOURNALs - "anyone who disagrees with MY stance is a sold-out, lowbrow, anti-intellectual, mercenary enemy of the noble artform of comics!"