Fedigrow

But then you would have groups with completely opposite point of views clashing, which is a reason why they are in different communities in the first place.

Let's take a famous example. An article about a new type of electric vehicles. !electricvehicles@slrpnk.net would probably be interested in interesting the technicalities of the new type, while !fuckcars@lemmy.world would probably focus on how cars, even if electric, should still be limited.

People would get quite aggressive against each other, and mods would have an issue moderating the whole discussion, because a mod on the electrichevehicles community wouldn't be able to moderate comments from the people from the !fuckcars community and vice-versa.

Communities are usually split for a good reason, and that makes sense.

When separate communities exist but share the same stance and rules on one topic, that's where discussion that should happen in one place gets fragmented. !movies@lemmy.world and !movies@lemm.ee have no reason to be split. The lemm.ee version is more active, have more proactive mods, but the LW has a broader audience due to the LW position in Lemmy. So some people keep posting on the LW version, keeping a weird situation where both situations are active at the same time.