I agree that we shouldnt discuss altcoins unless necessary but the community has been debating for a while now about forking to another bitcoin (altcoin). Some of us would never even be aware of this if it wasnt for other source of reading. If the only place i visited was bitcointalk and /bitcoin then i would not even be aware of other options to overcome current problems. That's the problem i see.
I disagree. If you wanted to get information about altcoins, all you had to do is to go into the Altcoin section (specifically: Altcoin Discussion). All the relevant posts were moved there. Bitcointalk does not endorse censorship, it has moderation. There is a difference between those two even though a fair amount of people do not recognize it. I can't say much about r/bitcoin as I'm not involved with it.