Using marketplaceservice calls, you can get various bits of info about any item in-game, including its thumbnail, what type of item it is(hat, place, shirt, etc), its name, and its description all from its ID.
After a quick wiki dive, it seems that you can see a player's membership status, their name, and their profile picture from their userID, however there is no native way to call for their bio/profile description.
So my first thought was to use this as an excuse to learn how to use the HTMLService, so I did some more wiki diving, and apparently you can't actually call any Roblox domains with HTMLService.
So... What exactly are my options?
@TheDeadlyPanther The rpoxy.pw site is no longer working. As roblox keept blocking it.