This happened once before. greatawkening was wiped out, and "regular anons" were allowed to post in there. At the time there was speculation we'd seen the last of Q, at least in that role. That speculation proved false, Q resumed posting in the same places (greatawakening and qresearch) a few days later.
I think removal of the posts is done to draw attention. I think leaving the 2016 Trump campaign speech behind is to cause it to remain in view.
Maybe Q will resume posting at greatawkening, or maybe at dayofreckoning.
My take is Q sees "now" as a meaningful marker point in the process or revealing and dealing with "everything involved." What the significance of this point is in "the plan," no way to know, only speculation.
Thank you for your thoughts. Sounds very reasonable.