Both of these things can be true at the same time:
1) QSC is a valuable entity to have in the community because of their aggressive pricing and no-nonsense attitude allowing for relatively easy ordering at low prices.
2) QSC can have business practices that are not great, such as not honoring a credit for a bitcoin payment at the value it was received at, despite bitcoin being worth more now than when it was sent.
I like QSC! You can agree that the net balance for QSC is good while also being unbiased to note that this situation is some bullshit. Relatively minor bullshit, but still bullshit. And you should really re-evaluate your stance on any sort of corporation that you are just another customer for if you go so far as to not only refuse to admit that a business practice was bad, but suggest that you should view it as a positive thing like they deserved a tip.
Your Chinese drug dealer is selling you this shit to make a profit. Don't get it twisted. They're not doing it to promote the health and wellness of their customers. They are making money. Save your tips for your pizza delivery driver. Not your corporate drug dealer. I didn't even tip my regular drug dealers, except for that one time my cousin drove 30 minutes out of her way to bring some shrooms out to the lake.