I think that the post you replied to was asking which stores are misleading customers by selling music sourced from MP3s as “hi-res” (presumably so they can be avoided).
Since this thread got bumped: the original question should now be answered by the Style/Release guidelines. Multiple releases should not be created just on the basis of:
- Different audio formats (e.g. MP3, FLAC, AAC, ALAC) or bitrates or “hi-res” releases.
- Service-specific mastering, e.g. Apple Digital Masters or Tidal Masters.