Not bad. Thanks for collecting.
As for the "[R]", and leaving out "ope[r]ators" from Nov 9 2017 23:07:15,
there's another two occurrences of [R] to the four shown:
"[R] = Renegade" – Apr 26 2018 15:40:47
"Gmail comms. [R]. [EG]." – Apr 26 2018 21:01:50
Did you leave those two out for a reason?
(two of your [R]'s are from after the 12/07 stringer, so I assume later [R]'s should be counted as well)