Question comic con and devisors/gadgeteers

So, does Comic Con in the WU have rules about devices and gadgets used for cosplay???

Like if a devisor built a real-life, fully-functional 1:1 Space Marine power armour from 40k and walked it around comic con?

Or a gadgeteer who wants to open a stall and sell all sorts of licensed merchandise that they built???

Do the Goodkinds OWN comic con's operator (comic con international) and therefore ban mutants from the convention??

Do Gen con, PAX East/West, E3, RTX (Rooster Teeth obviously exists in WU, as RWBY exists by Gen 2, and Rooster Teeth's first project was RvB in 2003, three years before the start of the WU stories. Oh, and RTX started in 2011, so it should be around in Gen 2)

For that matter, do the Goodkinds own any conventions or other things??? They'd be a great place for mutants to 'blend in'.

Actually, that's been done in other stories than the WU. I remember one with bird kids doing that....what was...Maximum Ride!!! Oh god, I remember that!!! This is off track though. Getting back to my question...

What are the rules surrounding mutant (especially Gadgeteers and Devisors in terms of cosplay and merchandise) at world-wide or location-specific pop-culture conventions??? Do any of them explicitly ban mutants, and are any owned directly or indirectly by Goodkind Industries??

The Goodkinds, pre-Ayla, apparently didn't bother even to buy Marvel. I would think that a convention (as opposed to a convention centre) would be a business too small, too geeky, too unprofitable to interest them. If they got it as part of a larger acquisition, they would probably divest it.