(This is only my opinion)
It’s really simple
If it takes to much time and is difficult to post stuff for sale members will just find somewhere else to post it and to find it for sale. Facebook, EBay....

Just leave it as is in its current state. I think the level of activity will speak for itself.

If it’s difficult or takes too much time we’ll source another outlet. If the goal is to reduce traffic and take more time, check that box, it would appear as though that objective has been met.

I don’t know about anyone else but I can’t stand waiting on the phone pressing 1 for that person or 2 for that department. I just continue to crush zero until I get through or I go elsewhere

I’m going to assume that the majority of the membership is male (I state this only as a point of relate) and I can’t remember that last time I was with a few car buds and said “I have way too much time on my hands. you know what would make my day, more steps to complete super simple tasks”
And having someone telling me it’s a better way to do it.