EDIT: This response is from Nov 2017 and may not be accurate anymore.

Most of the items in the featured guidelines are just restated sentences taken from somewhere in the TOS / Developer Rules of Conduct, or based on requirements that Xbox puts on Roblox games featured on console.

Sharksie: Sharksie: This rule doesn’t mention robux - so what I’m reading is that if you have an item that you didnt buy with robux and you gamble it away, this is okay under the ToS but not okay under this rule.

Yeah, apparently this seems fine going off of what’s written in the TOS (it only mentions no gambling with any real currency involved in any way, and that games must be fair/non-skewed), but the featured sort is stricter in that regard.