YES completely unlike other brands
I used to flip and fix guitars as a little side business
Near EVERY time i ran across a guitar or bass that by all rights should have been quite nice, but sounded ****e, it'd have these totally rusted out and rect strings...and when I cut em off and set it up with DRs or even bargain bin EBs, itd be a winner again
And at some point I noticed, EACH time the ball ends in my trash can would have the color coded D'Addario ball ends...
Hell it even happened with basses. And proper bass strings really dont even need changing, just cleaning or a good solvent wash
Other strings can get nasty, but D'Addario has some special LEVEL of nasty, and it gets there a lot faster.
PS i like fresh strings but am no string change fanatic, I got guitars that have the same strings on em for years.