I will have to take a look at this post. 
I know there was a chat feature at the bottom, I just have never used it. 

Satosora

The way I’ve seen it done is with SimpleX Chat. Some stackers put a link in their bio to connect. I’ve done the same. It is E2E encrypted, no email or phone number required, and you can spin up unlimited profiles - for instance I have one just for SN.

Someone even created a group for SN stackers to chat. Thought it is pretty quiet 

Private Messaging

The way I’ve seen it done is with SimpleX Chat. Some stackers put a link in their bio to connect. I’ve done the same. It is E2E encrypted, no email or phone number required, and you can spin up unlimited profiles - for instance I have one just for SN.

Someone even created a group for SN stackers to chat. Thought it is pretty quiet https://stacker.news/items/432873/r/DEADBEEF?commentId=433342