There are 2 kinds of people who get banned. People who actually deserve it and people who get rando-bans. A rando-ban is something you have no control over. It is caused by things like unwritten rules, nonsensical rules, or the unpaid intern mods having a bad day. Things that a warning could have easily taken care of. Lemmy cannot give you a rando-ban, but if you actually deserve a ban than multiple people can come together and do it.
My first rando-ban on reddit was posting too much content from the Washington Post. Even though I was only posting about 1 article per month I was “spamming”. It is wonderful knowing that on lemmy/kbin I can finally start submitting content again without risking a rando-ban.