Blizzard hates it, why not Blizzard kill off or stifle outside carry websites? Similar to the WoW Token stifling gold buying from outside websites.
Like a group or individual can sell carries to lower iLevel/Level players for gold. The seller may need to meet certain qualifications, like iLevel, Proving Grounds, and/or achievements from relevant content. The buyer does not, they just need the gold.
If this was in-game, I’d get my Brutosaur in a heartbeat from carrying people through Normal Islands.