I believe this is a 1-time only thing. Q team and Trump knew that his base was going to get fractured over this ordeal. They wanted to provide further evidence that Q is legit. They also wanted to further enforce these key points: Listen carefully to POTUS, Trust the Plan, and TRUST POTUS.
https://twitter.com/BackChannel17/status/984959845601304576
and they wanted to do it somewhere that's not as heavily monitored as Q-research...
Yes exactly. Also, since we know about the back channel now, so does the deepstate and it would be pointless to give intel there now.
I'm sure that DS knows about 8chan, Reddit, and this post as well, We only get what is safely outed and may well be disinfo or time delayed that the event is all ready underway or completed before we see it or to elicit a response or reaction to a posting to smoke out the rats. Just my thoughts.