No hard redirect dot net has more languages than c# so IMHO there is a need for a separate community dedicated o c#, at least until the blackout of /r/csharp ends, a few weeks aftre that point it might be a good idea to see if the communeties over here stil are active enugh to vorrent them being separate.

That is good news

Well .net still has several languages (even created by microsoft) VB.NET ( less pupular than vb6 was, but still refuses to die inspite of microsofts rather loud signaling that they wish it to) and F#. So yes having c# and .net as separate communities still makes sence IMHO, but I might be wrong
Edit: And i forgot another pont in favor of keeping csharp and dotnet separate, because uf the blackout of r/csharp and the mods hepull linking to this community we are going to see quite a few people coming over here looking for a drop in replacement and they are used to a dedicated csharp community. it would be easier to retrain their musse memmory if they get "the same content at a different url" so to speak rather than a mixed community for all dotnet.