There are, and the rules for each community (subreddit) differ, but there are also the instance (server) rules, so it can get a bit complex. The community rules are usually posted in the “sidebar” for that community, eg. https://lemmy.world/c/asklemmy, the instance rules you’ll usually find in the “sidebar” for the servers home page, eg. https://lemmy.world/. you can tell what instance a community is in by the community name, if it doesn’t have a “@” in it, it’s on the same instance you are.
Just have a quick look at both sets of rules before you post something and you’re probably fine. Even if you get banned from one community or instance, there are likely similar communities and instances elsewhere you can go. The biggest difference will usually be how active they are. You can also set up your own community, and if you’re tech oriented, your own instance.
There are, and the rules for each community (subreddit) differ, but there are also the instance (server) rules, so it can get a bit complex. The community rules are usually posted in the “sidebar” for that community, eg. https://lemmy.world/c/asklemmy, the instance rules you’ll usually find in the “sidebar” for the servers home page, eg. https://lemmy.world/. you can tell what instance a community is in by the community name, if it doesn’t have a “@” in it, it’s on the same instance you are.
Just have a quick look at both sets of rules before you post something and you’re probably fine. Even if you get banned from one community or instance, there are likely similar communities and instances elsewhere you can go. The biggest difference will usually be how active they are. You can also set up your own community, and if you’re tech oriented, your own instance.