Yes, I vote "yes" for this proposal. There is no change to list a 0.1 or 1 DEC without the need but it can reduce some bots. And frankly speaking, I don't want to list any card at 0.1DEC because it's not worth doing it.
I read another comment from @davemccoy, I agreed with him on point 1 but each adjustment step to be 0.1DEC instead of 1 DEC. 1DEC each step seems too high in my opinion.