Toxic usually means full of assholes. People will get super mad at you and swear at you and say very bad things in general if you make one little mistake or don't know something. If you are a noob, prepared to get treated like shit and told you should die violently in real life.
Much like you'd hear about a toxic environment at home or in a poisonous mine, it's a very dangerous and bad place to be.
In some games, where the only way to have fun is if everyone knows all the rules and has skill and is playing seriously, one person who falls out of that spectrum can ruin it for the other(s) and thus people start to get angry very quickly and don't hold it inside. Games like League of Legends is 5v5 and highly skilled. One poor player can result in a 20-30 minute game with a guaranteed loss and no fun along the way, so it becomes very easy for people to spit vitriol at them. You get punished for leaving as well, so you are locked in for a certain amount of time, held prisoner if you will, by someone who doesn't meet your standards and whose weaknesses you can't overcome yourself no matter how good you are. Yes, this sounds like a horrible system and an easy recipe for disaster. On the flip side, if both teams are good, it can be very rewarding.
One thing I like about Heroes of the Storm, which is very similar to League, is that they solved a number of issues that results in less toxicity. It's still there, but it's taken much longer to grow and is still at such a lower level then what I remember League being years ago. I even got an email from Blizzard saying they banned someone I reported, so that makes me feel like at least something happens when I report bad behaviour. Since the game was designed to allow for comebacks and a single player's contributions can't hurt you as hard as in League, a strong team can still have a chance with one weak player. You still have assholes though and you still have rough games.
Ok, so normal gaming experience in those kind of games. Take Dota, which wastes the time (40+ mins, compared to the 20-30) of 4 players if one is an idiot. Of course you'll get flamed for it.
Sure, but it leads to a community that gets very quickly very angry at tiny things (because of the expectation that the person will ruin their day), and as a result those who don’t want to deal with that leave the community.
Left is a group of people that react very angry very quickly, even out of the game.
Much like you'd hear about a toxic environment at home or in a poisonous mine, it's a very dangerous and bad place to be.
In some games, where the only way to have fun is if everyone knows all the rules and has skill and is playing seriously, one person who falls out of that spectrum can ruin it for the other(s) and thus people start to get angry very quickly and don't hold it inside. Games like League of Legends is 5v5 and highly skilled. One poor player can result in a 20-30 minute game with a guaranteed loss and no fun along the way, so it becomes very easy for people to spit vitriol at them. You get punished for leaving as well, so you are locked in for a certain amount of time, held prisoner if you will, by someone who doesn't meet your standards and whose weaknesses you can't overcome yourself no matter how good you are. Yes, this sounds like a horrible system and an easy recipe for disaster. On the flip side, if both teams are good, it can be very rewarding.
One thing I like about Heroes of the Storm, which is very similar to League, is that they solved a number of issues that results in less toxicity. It's still there, but it's taken much longer to grow and is still at such a lower level then what I remember League being years ago. I even got an email from Blizzard saying they banned someone I reported, so that makes me feel like at least something happens when I report bad behaviour. Since the game was designed to allow for comebacks and a single player's contributions can't hurt you as hard as in League, a strong team can still have a chance with one weak player. You still have assholes though and you still have rough games.