A main one I heard was Exo-L being obsessed (not all but a healthy number). VIPs (including me) tend to call Big Bang the "kings of k-pop" and that seems to often start small fan wars. I have seen Shawols and Exo-Ls clash as well as VIPs and Exo-Ls. I am not really sure about this but I tried my best to answer the question. No offense to any fandom. We are all important in the k-pop world! :p ;)

I'm not sure about stereotypes other than exo-ls tend to be thought of to be crazy saesengs. SO do elfs from what I've heard.

I'm not 100% sure on this but BBC and VIP don't seem to get along very well...a lot of BBCs don't really like it when people compare block b to bigbang just because they both tend to have quite crazy mvs and a similar style in some ways (not many though, if I'm honest.) but I've seen lots of people get reeeeeally butthurt whenever someone mentions bigbang in the comments of a block b video. honestly elfs and exo-ls don't seem to get on with many other fandoms...lots of fandoms don't like them and they don't like lots of other fandoms in general for the most part. I myself am an exo-l, vip, bbc, army, igot7 and seventeen fan but they don't have a fandom name yet 'cause they only just debuted. Some armys are pretty chill with exo-ls but there are a lot that don't like them.

kinda two years late but whatever, thought I'd answer anyway~

1. Vips are a bunch of arrogant people lol. Exotics are too obsessed and crazy. Blackjacks are butthurt. Lol I think thats all

2. Exotic and baby tho im a fan of both. Elf and sone. Vip and elf. Blackjack and sone

1. Well f(x) is like the unknown fandom....it but it's true, they're amazing but they don't get enough recognition. Oh and a stereotype put on the exo fandom (not sure if its true but my friend always tells me it) is that EXOtics are crazy (not in the make gifs all day way...the insult you ship wars way) I don't agree with her because not all the fans are like that so we shouldn't be categorized together in that sense
2. Exotics and baby's do not get along o.o sadly I'm both >.> that's all I got...^^

1. this is... really something... but for me is elf back then since im a cassie back then. but for now, i think none of fandom are bad... they do something bad to other fandom is bcause they love their idol so much.

2. exo with baby and cassie with elf

oh my gosh, these comments are so unhelpful xDD i honestly don't think mine will be any better.

but honestly, i cannot think of anything. i guess one is that EXOtics are crazy? but that's kind of true for almost all kpop stans, really..

and for the second one, i don't know. my biggest fandom (shawol) tend to get along with a large group of people. it's usually a few random people from other fandoms that kind of attack them?

i know a lot of suju, dbsk, and pretty much any guy group under s.m. fans tend to hate/be jealous of snsd. there's a lot of stupidity in kpop, but it's kind of hard to pinpoint.

anyway, i hope i helped!

emmm... i'm sorry... cannot help you,,,, O^O

This is WAY too complicated. It's summer and my brain doesn't work. I'll try yo think of something though.

I really have no idea...