To me, that's kind of a no-brainer kind of statement - ANYTHING that makes your feet sweat will cause them to stink, right? Right.
Anyway, here's the full deal on all that -
The blame will always go to the material used to make these shoes. Most people will blame the smell emanating from the feet to the material. Yet, many people do not know what material is used to manufacture Crocs.
One might guess they are made of rubber or plastic? Wrong, crocs are not made from either material.
Crocs are designed to ensure the feet does not smell. The holes on the shoes are there to air out the foot and enable it to breathe.
The holes help the shoe function better than the average pair.
In the end, the answer to the question is 'no'. Wearing crocs does not make one's feet stink and it is specifically designed not to. For those who do feel their feet stink, it will generally have to do with sweating excessively.
The material and design are geared to not smell and should function better than the average pair of shoes.
False reasoning related to the material has been making the rounds for years about crocs. Yet, they have been proven wrong as the entire shoe is designed, so it does not stink.
At the end of the day tho, it's right back to what I said earlier - if it makes your feet sweat, your feet will probably stink.