One thing is disliking the addition of certain characters (I personally would be dissapointed with a Dark Souls rep or Bandana Waddle Dee, since they don’t seem that interesting or worth of 6€ in my case), but another is to call them trash without giving any reason at all while only asking for people to jump on you and cause trouble.
Even with the case of the Dark Souls rep and Bandana Dee I could at least be happy for the people who wanted them (even if my past experience with a few supporters of the latter wasn’t so pleasant the moment I mentioned Adeleine to them). Smash Bros is a game, and we shouldn’t be fighting over who gets on it while looking for fights.
I may want Crash and Eight a lot for Smash, but I could live without them getting in since Crash is having new games and merchandising at last and so does DQ.