its been a week since i answered this question people seem to ask me every day …
do you think (if it was actually possible that steam and a ps4 could connect their systems and freely check each others accounts) sony would be ok with loosing money on something because a rival company had already made money off something?
its not possible and far from logical, i know a lot of people are confused due to the portal 2 stuff.. but that was an isolated incident..
loyalty discount will only work on steam because steam is the only system you could have been loyal to!