IMO, for atlantis, there are Atlantis summon mega thread, so it is better post lucky/unlucky post to those thread.
For event, also has a thread that is already included (summon result) in tittle, so it is also better post there.
The problem is HOTM-only does not have any summon thread, I think if we want to post lucky/unlucky pull to HOTM thread is okay for me, so just add tittle include summon result 
The problem is show off atlantis or event pull in HOTM thread.
This is the point.
Example good post in HOTM thread:
I get Kingston, blabla what do you think people… should I ascend or wait.
Example not good post in HOTM thread:
I pull 10x atlantis/event get all *3 no atlantis/event, but get HOTM… etc.
EDIT: one more… post lucky/unlucky Atlantis pull to Atlantis Next-Schedule thread.
This thread:
It should be moved to Atlantis Pull thread, not in the schedule atlantis thread.