more like "i want a ready-made community where other people already putting effort into posting cool and intersting stuff, and all I want to do is sit on my ass and shower posts generously with """muh upvotes™""""
New user here. Where should I create my community? Are there servers or groups or something that I should review first? I don't know the difference between a server and .world or .ml or whatever.
.world and .ml are servers. I’d recommend choosing a server related to your topic (programming.zone if it’s comp sci related, for example), and try to avoid piling into the largest ones (.world and .ml, etc.).
Is reddthat a server? Should all of the communities inside a server be related? I'm asking because I want to create communities but I don't know where it's appropriate to do so. For example, if I want to create a sub for venting about family, is it okay to do that on any server? Or do I have to go digging to find the "correct" server?
Yes, you could create a community on reddthat (if that server allows for new communities to be created and hasn't disabled that feature).
No, they don't need to be all related. A server admin likely would tell you "hey please don't create this one here, because this server's focus is xy".