No.20177
What if the restriction was lifted if there was a recent mod action and no recent thread deletions. It's only there to stop the catalog being flooded when mods are offline anyway.
No.20189
Depends on the thread being made, a lot of spam or no-effort OPs are made or of existing topics that are just pointless, thus the mods clean up sideboards from that because they're slow as is and can't afford split threads that make them even slower