As a Roblox developer and Guilded partner, it is interesting to see that Roblox has not added Guilded to the PolicyServiceAPI responsible for filtering 3rd party links.
Many developers use this policy to advertise their social media in-game through chats and many different UI. Having this API saves people the trouble of going through the roundabout way of telling people to go check the Social Links on the game’s page.
If Roblox is able to address this issue, it would encourage more developers to move to Guilded. As Roblox incentivizes developers and community owners more and more to check out Guilded, it would only make a lot of sense to allow developers to link their Guilded servers in game.