Well, I know in season 2 of aether the big clan by the name of "Dream" got in trouble for camping... the original leader of the clan- former mod and youtuber- Hydr0kt told his clan TO NOT camp volcano. However, I am not sure if it was actually ever a real rule or if people were just annoyed by the fact an entire clan camped volcano and no one was able to enter... imo, the easiest way to not die in volcano is get better gear or make deals with ppl in volcano- be that truce mining or giving your zeggs to the other player.
Ofc, I also believe that the volcano adds a layer of toxicity, as many newer players get frustrated when more experienced players kill them and take their stuff some even going as far as burning the drops. Often, this leads to filter evasion and caps spam... which is quite unfortunate because there is a very simple solution- just give the person a break or give them new gear. Honestly, I'd like to see the aether community be nicer to new players and definitely more helpful. By helpful, I don't just mean answering questions, but physically helping a player be it building a cactus farm or a grinder.
I understand that volcano is a "free for all" pvp arena, but the toxicity is not necessary. This goes for both sides- if you die in volcano ask the person to give your stuff back, but don't scream in chat and yell at the person. They are more likely to give your stuff back if you are nice. As for the "player killers" you are free to kill anyone in volcano... but if they are being disrespectful, do your best to diffuse the situation, either give their stuff back or give them free kit gear. Tbh, it's mostly donators who kill players in volcano- I've never seen a non try to purposely kill/camp in volcano. And if anyone is acting rude/disrespectful block the person and report it to staff and they will deal with it.