I'd like to hear your reasons for this. From what I see, most discussions on child exploitation on Roblox eventually make clear that the exploitation happened outside of Roblox, most commonly on Discord. Moreover, it's a lot more difficult to censor a few messages talking about alternative platforms than it is to stop a long-running logged chat conversation where child exploitation usually takes place.
Roblox connects them in the first place, what does it matter that it progresses outside of Roblox? That would necessarily be the case if they were to ever meet IRL anyway.
Oh it's difficult for Roblox? A $42billion company? Whose entire business model is based around kids? It's difficult for them?? Boo fucking hoo.