Following the spirit of that post, i was wondering what was your thoughts about the following:
The party druid wildshape into mammoth(elephant) form (huge size), the rest of the party consisting in one small and 3 medium sized individual. Could the said wildshaped druid carry them around on his back, taking into account that said druid have the load capacity to carry them all and their gear.
And following that logic, how much medium or small creature can ride a huge or larger mount-like creature.