kittey said:
That only applies to better versions from a different source (e.g., Pixiv vs. Twitter). If someone uploaded a sample, request a replacement instead of uploading the full-size image yourself.
Thank you for the advice, I'll surely act this way in a future case like this. I just wanted to express my side, because user Komedordksada sent a 'non-friendly' dmail to me... which I suppose was blaming me for his post getting deleted.