It is basically this, but mainly because that's the .com that was available between the two. I've always liked a good abstract domain name hack, but recently I've been moving back to .com so good names can be hard to come by.

It was originally titled anon-chat (no affiliation) because of the way the usernames are formatted (hashed and shortened with @ sign prepended, to prevent name struggles and squatting cool names). Before pushing the project I had a moment's reflection and then hesitation that maybe I might be barking up a different tree with that name.

I took "SSH" and "BBS" and tried the associated names, and eventually settled on this one. it doesn't have a lot of bang-pow to it, but it works and it's a short .com.

For the uninitiated:

https://knowyourmeme.com/memes/shh-bby-is-ok