When you consider the pros and cons, the cons overwhelmingly outweigh the pros.
This.
I posted a thread a little while ago about purchasing a used pipe rack with a glass tobacco jar on the side (with the intent of keeping my "go to" blend in for easy access). To my surprise, the jar (which has an unsealed, wooden lid that rests on the jar) came full of a sweet smelling tobacco.
I didn't know what to do, so I posted here asking for input. The responses were more diverse than in this thread.
After weighing the pros and cons, I just couldn't bring myself to smoke it. The cons overwhelmingly outweighed the pros.
If it helps, a few words of wisdom from members included that I didn't buy the rack set for the tobacco and wouldn't know what I was missing or be "out" anything aside from "free" tobacco. In other words, there was no buyer's regret or loss involved.
However, my two cents and a dollar can't likely get you a decent cup of coffee. Whatever choice you make (and it looks like you are favoring the trash) will be the correct one.