There are only two ways off the list: 1) A real apology from the company or 2) A correction of the defect that caused the company to go on the list
I have only, ever, taken one place off the boycott list.
Otherwise I am a pragmatic consumer. However, if a certain place is good and safe, why not use them. All things being equal I prefer Amazon to a smaller website and I prefer NewEgg for tech stuff. Doesn't mean that I will not order elsewhere just that these places offer some safe haven.
(NewEgg barely missed the boycott list but that is a repost)