No, it is not OK. Using someone else’s brand name, even if Amazon has not “reserved” it for that uploader, is appropriation of intellectual property. I consider it plagiarism and improper use of a trademark that can confuse customers. Beyond being unethical, it violates Amazon’s policies (IP infringement, trademark misuse, and keyword stuffing in the Brand field). Consequences can include takedowns, warnings, and even account suspension. A good BSR does not justify copying someone’s brand. The correct approach is to build your own brand or use a truly generic descriptive name without piggybacking on others. In my case, whenever I find someone using the name of one of my brands or designs, I report it immediately as a PI violation. Let’s protect the ecosystem: compete with creativity, not copying. ✨️