These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Base Breaker: Angela. And that's as far as we'll go to avoid flamebait, ladies and gents.
Alissa. She's just joined, but she's getting loads of hate from people who claim she looks like an Avatar reject (due to her blue hair), she should just go back to her own group and let Johann Liiva or Angela Gossow sing... (Of course, Angela said that she was no longer interested in singing and wanted to move on with her life, but hey.)
Face of the Band: An odd variation on this with the face of the band at first being Michael Amott (formerly of influential grindcore/melodeath band Carcass) who many saw as the band's only important member. However when Angela joined the band, she became the face of the group and Michael became an afterthought.
Fan Discontinuity: Some fans choose to disregard anything from a certain era. There are those who believe that the group ended when Johann left, or that the group began when Angela joined, and now that she's leaving, they're leaving too.