well 6 years ago, BMTH used to play hardcore shows in leeds, manc, liverpool... with Dead & Gone Records roster of bands (and others) that existed in the same period, plus some touring hardcore bands that at the time played small shows. like i remember paying £4 to see The Nothing, BMTH, Send More Paramedics in liverpool. and I saw BMTH open a show in manc with 50 On Red, Damage Control from Norway, The First Step blah blah blah. Kids hated them even then... but some people (like our singer) kind of new those guys or genuinely liked their stuff or elements of it.
I think at one show i was at, some hair extensions fell out on stage... so rumour has it. Our singer was at a show where BMTH played and they put out a 'mosh call'. Our singer moshed and kicked out Oli Sykes tooth.
The bassist from Dirty Money/singer in the new band im in, and a bunch of my friends used to be in The Break In, who did a tour with BMTH around the UK, playing london astoria and such. They said the BMTH dudes didn't pretend to be tough or metal or whatever, they just do what they do and people have had beef with that ever since they started.
I had a meeting about DM becoming involved with visible noise records once, where I think this story came up. However, for various reasons we chose not to pursue that route.