Theory:

Q posted [Next Week] on Feb 9.

11 minutes later posted [Next Week] three times followed by "Suicide weekend?"

Q posted "Next week" on March 17. Delta 37 days.

Q posted "next week" on April 21. Delta 36 days.

If the post on the 9th prior to "Suicide weekend?" is to be counted as #1, then suicide weekend is 35 days out, and Memorial Day weekend.

Just a theory.