Fact or Fiction problems with the blueing of the XD pistols

so I'm a member of a few boards and have visted a few different gun shops in my area. as a results an SA-XD sub-compact is on my list but I'm concerned about a rumour relating to the finish on the blued guns turning sorta brown and almost sorta rusting.

Is there any truth to this? Does the XD require more care then lets say my Steyr or my nitroned Sig?

Just wanted feeedback from actual owners rather than second or third hand information?