Firstly, I hope you are not going to start moving threads without the GM's approval,
@POOHEAD189.
Secondly, there are plenty of casual threads that would be Advanced by the metric of post length alone, but I would argue this ignores the culture of each section; a
vibe that most users of the Guild are implicitly aware of.
If the section a RP belongs in were predicated on the volume of lore squirreled away in hiders, then you would only find fandom settings in Casual, and you would never get any original fantasy or sci-fi settings anywhere outside of Advanced. You can't send a RP to
the gulag Advanced just because the world-building is "dull".
When a GM makes a RP, they make it with a certain type of player in mind: people who they have met in previous roleplays in the same section and in the same genre, people with the same expectations of railroading vs. sandbox, people who encourage a
certain level of OOC chatter and hype, people who don't argue over granular details of lore for hours on end, etc.
Cynics would say they pick Casual because it's the most busy section, but that's a hard disagree from me. In my experience, it usually boils down to 'I like the userbase in Casual over Advanced and I want to see what they bring to the table'.
I would trust a GM knows best what audience they are targeting for their roleplay and it seldom comes down to word count.