So to vent a little, and speaking on what others have said. I do like DBD, and I've been playing since around Leatherface was released in it. However at the same time for me the game can also be incredibly stressful, and aggravating (so basically I love it, and hate it at the same time). I'm not going to speak on balance or whatnot as I'm a pretty casual player, playing on, and off whenever I feel the urge so I don't feel "qualified" to talk about that, if the characters are buffed or nerfed I usually woudn't even really notice at my level unless it's a really major change, but I will say that as a Killer main (I specifically bought the game because I could play as a variety of different Killers.) it is usually much MUCH more stressful playing as Killer. I feel like playing as Survivor since I'm on a Team, and am always expecting to be killed unless I get very lucky it feels a bit more relaxed. However when playing as a Killer EVERYTHING IS ON ME, and it can be very stressful to play, so I try to play expecting to lose (like with Survivor.), but it can be so frustrating, like I have to take things REALLY RELAXED to enjoy it. But it's so easy to get in a Chase, and even though the other person is much more skilled then me, I get to where I don't want to "lose" to them in the Chase so I keep going, and going, and going even though it's near impossible. And then a lot of times if the Chase isn't that hard, then their Friends will immediately come, and break the Hook I'm taking them too or Flashlighting me or whatever, which I understand is what the Survivors are meant to do to help each other, but it's just the kind of thing that can be very enraging.
I don't have the time or patience to play massive amounts to "get good", and seeing what other Killer players say about the game when they get to an actually high skill level, I feel like it wouldn't make much difference if I did. So more, and more when playing as Killer, I try to keep myself relaxed, I usually play "friendly", and only Hook each person once or twice (many times if I'm up against SWF or more skilled Survivors, that's all I can manage anyways.), maybe I'll take a Kill or two if I can get them, but when the Generators are done I immedietely open the Gates, and try to get the Survivors out quickly, if it was a difficult match, and the Survivors give me a hard time then maybe I'll just chase them a bit without expecting to actually catch them or just goof around till their ready to be done.
I used to leave a Lobby, and look for another match if I saw more than one Flashlight before starting, now I just keep a set of Perks with Lightborn ready for every Killer, and use it if I see a single Flashlight. I also always use Bloodhound to more easily track Survivors that I've hit.
I guess basically when I first started playing the game and saw that it was only Ranked PVP, but that the Survivors could be in a group together all using Discord (or whatever is mostly used for Teamspeak nowadays I assume it's Discord though.) for what feels to me like an unfair advantage is when I gave up on ever taking the game seriously as a Killer. So my goal since then has been to find ways to enjoy the game playing very casually as Killer, and trying to never let the Survivors get me agitated or too much "into it" because it always inevitably just makes me super stressed while playing. I think the time that stood out to me the most from recent memory is when I was playing against some SWF on the Macmillan Estate Map with the Tower on it, I started Chasing this one guy, and he always took the same route up through the Tower, and it felt like I could almost reach him, but always just miss him, and we kept going through it over and over, normally I would have just given up, and ignored him for the rest of the Match. But I got "into it", not wanting to "lose" and was like "If I can just get this one guy, and Hook him one time then I don't care what else happens, and I'll be satisfied with that." Of course I never caught him, and all the Generators were finished so I opened the Gates, went into the Basement, and stood pathetically in the Corner until the Survivors left, hanging my head in utter shame, and humiliation.
Since then if I get a Chase like that I just remind myself what happened before, then I break off the Chase as it's not worth the stress. And if things look like they really won't go my way at all then I just start goofing around, and casually fake chasing the Survivors until the Gates are ready.
It may sound like insanity to keep playing the game at that point, but I like the characters, and the story, and basic gameplay (particularly for the Killers.) so if I can just keep myself from taking it too seriously while playing then I do have fun, but I don't think I've ever played a game like this where I had to put in so much work to not take it seriously while playing.
EDIT: Forgot to mention this, but another reason for me mainly playing Killer is the Bloodpoints, even if I goof around then usually I still get a good amount, but as Survivor it feels much harder to get BP, and as I want to focus on Leveling characters, there's not as much incentive to play as Survivor imo.