I'm not buying it. "19" is "19", not "1""9"
Q has concatentated bracketed numbers in at least one post.
Jan 27 2018 12:34:38 Q !UW.yye1fxo 69Chatter exploding.
Change of narrative will be required.
[-4][-5]
Others have posited that the prepended "@" indicates the bracketed number represents a specific living breathing human being.
I also don't think the use of [19] has been perfectly consistent, one time the reference is "What [19] people are currently meeting in a 'safe' room" which is clearly a reference to a number of people. Other uses of [19] are ambiguous, and could be taken to represent a person or an identifiable group.
ph