Hi there. I wasn't in the linguistic community in Reddit, but I am a linguist and I would be willing to create one here and moderate it. Linguistics is very broad. What were the topics discussed in the reddit community? I am a psycholingusit, so the focus of my contributions would be mostly in that field, and I imagine mostly scholarly content being shared and discussed, but I would like to know what someone like you, who used to be a member, would expect from such a community.
EDIT: There's already one! : https://kbin.social/m/linguistics