So far all the corrosion problems I have heard about with Home Depot speaker wire seem to have involved the clear thick insulation (ie out of wall), not the thin black insulation plus jacket (in wall).

Does this match what you guys are seeing ?

M60ti, VP180, QS8, M2ti, EP500, PC-Plus 20-39
M5HP, M40ti, Sierra-1
LFR1100 active, ADA1500-4 and -8