“Count your beats”
Well, they are all exclamation marks, but if an exclamation mark represents a beat, there are either 188 or 187 plus “!”
187 as Publius indicated has some association with Homicide, which is not how Q operates, or, we certainly hope, does not operate. 188 is probably correct, but the meaning, is like so many other things on this side of the rabbit hole, obscure.
Plenty of the ops Q references include homicide.
“187” is police code for homicide, and Q has used this number a lot in his postings.