After paying their dues, should hobbyists who committed fraud be allowed back ?

[G1911]

Originally Posted by Peter_Spaeth

As to your example, the distinction may not ultimately hold up, but I want to distinguish between someone in the hobby who fails to do research, and someone completely outside the hobby who is just ignorant altogether.

I'm replying before you add in these additional points.

I bought an item in a set I am steeped in from an antique dealer for $90. They clearly did not know cards well. I was offered north of $10,000 for it shortly after. I got the item in what I would term fairness, it was publicly listed but poorly so, and I took advantage of that terrible listing to get a deal, but I did not lie to do so, did not extort, strong-arm, or change the situation in any real way. I didn't correct the seller, I didn't write them a check for more after I got it. Did I commit a moral crime?