Generally, it's impractical most of the time for non governmental actors to figure out who a poster is on a BBS like this one. Also domain privacy means that nobody outside the domain registration company can figure out who I am, as DC owner.

But supposing I did something in my own life that put me on government watch lists, or one of you did. You can then assume that private search warrants would be used to determine our role on this BBS, and then map out a set of social connections... just like Facebook.

The key is, as far as I know, nobody here is interesting to the government or law enforcement.

If one of us became interesting, we would all get surveilled.