Tokens are unapologetically RMT and the reason why blueberry economy™ is only a memory of better times.
I think that both in the interest of increasing security during the new world filled with new Steam players, and in the interest of incentivizing less lazy RMT-type play, that we should not allow tokens to be put on barter stands anymore.
Tokens should only be tradable the same way that hats are, where you must right-click on another person and manually transfer the ownership of them.
This makes trading and owning them safer, and adds a layer of "you need to actually do the bare minimum of effort" to use them to your advantage. Being able to passively trade them in a barter stand and let your money play for you is just icky.