Sorry to pop in unannounced.
Unfortunately, you can’t rely on Outrageous being consistent as it’s now a tradable item.
Basic is the only one you can reliably check as of this time.
The Builders Club Badges have also been reduced to a single Welcome To The Club badge.
Which I guess means you can check if a player has that badge they’re a real one… but you can’t solely rely on their hard hats. Basic only got the hard hat, but I know Outrageous had three extra hats that cannot be traded at this time. Those being Eyes of the Everworld - Roblox, Outrageous Aetherspectacles - Roblox, and Hood of the International Order of Buildmasters - Roblox. If you recall there were also gears handed out to all members, the different tiers correspond to how many gears you got.
Actually… you could skip the hats altogether with this one. As long as the players don’t delete their gears, you can check if they have an Egg Basket - Roblox, Bloxilicious Bubble Gum - Roblox, and The Midas Glove - Roblox.
Basic - Egg Basket
Turbo - Egg Basket, Bloxilicious Bubble Gum,
Outrageous - Egg Basket, Bloxilicious Bubble Gum, The Midas Glove