CTRL+Right Click on a piece of custom gear and it opens the customization window. You can remove and replace mods here. Taking mods out costs credits but you can overwrite them for free and lose the previous mod.
I agree completely.
Yes, armor value comes from mods but a level 50 mod in light armor is significantly lower armor value than the same mod in a medium or heavy armor piece.
Give in to the dark side. You earned your corruption, wear it proudly like a badge.
On topic, I only turned it off temporarily to see if it worked and it did.
I agree that some of the responses don't match the dialog.
You can press escape and start the conversation over if you aren't pleased with how it's going.