I appreciate your answer! I would like to offer a counterpoint; at what point does a person become responsible for their own ignorance? And how often is ignorance, whether intentional or otherwise, the direct cause of malice, or malicious behavior?
In the slim chance a person here sees what they said, and does not know that Amazon is "evil," merely saying not to work with an evil corporation is not educational, and therefore serves no purpose.
Since there was no effort to education, we can assume within a reasonable amount of doubt that they are speaking to those who are already educated. And if that's the case, then all they offer to the conversation is, at it's heart, self-satisfaction. Anyone aware that Amazon is evil who chooses to continue to use their services has either come to the conclusion that they have no choice, or simply doesn't care.
They add nothing to the conversation, and in fact, might reduce engagement with the premise (use this affiliate link to reduce the harm of doing business with Amazon).
I agree with your statement, that we should treat all actions with reasonable doubt. Offer that before assuming malicious intent. Which is absolutely true! I don't believe the commenter intentionally thought, "I'm going to shut down this conversation while also virtue signalling." But the effect is the same for the purpose of conversation. It adds nothing of value and may even discourage discourse. It is equally as useless, to me, as pretending to champion a cause from a screen, patting themself on the back for their wise ways, and doing nothing. It provides the illusion of helping, while adding nothing. And that's a dangerous thing.
I would correct my statement in the presence of anything at all to "add" to the discourse. Explaining why using Amazon would be unwise if it can be avoided. They did not make that effort. I stand by my previous comment. But I want to thank you for taking the time to engage me, and I really hope you continue to try showing other people the value of giving people the benefit of the doubt! It's so important, and does so much kindness in society.