Starting with post directives from February 9th 2019 subtracting days starting at 90 (mirrored order).

Q posts these numbers on February 9th

Time reductions mirrored to start with placeholders on 11:11.

This is my theory:

[-90] DAYS Prior to 2-9-19 is 11-11-18

[-60] DAYS Prior to 11-11-18 is 9-12-18

[-45] DAYS Prior to 9-12-18 is 7-29-18

[-30] DAYS Prior to 7-29-18 is 6-29-18

Screenshot from 11-11-18.

Each one of these dates had NUMEROUS Q Posts.

Coincidence?