This is not a valid excuse to keep hacked items knowing that survival isn’t post-Plantera. As the rule says, keeping illegitimate item drops is equivalent to using a client to spawn them in yourself.
read the rules and quote the rule(s) you broke. If you do not know how to quote the rules, read the guide How to quote the rules.
If you do not identify the right rule(s) that you broke or you do not know which ones you broke, I can make it clear.