I would consider every situation as an exploit instead of scamming, that is, if the faulty software was found and was intentionally taken advantage of, just like how LAngel did from your quote did. I consider Exploiting and scamming as two sides of a coin tbh. Let's say A is the creator and B is the user, Exploit is when B takes advantage of whatever mistakes A made, intentionally. Scamming, on the other hand, could be said to be A taking advantage of B. Some examples could include making fake sites and taking advantage of the ignorance of B, they scam their money.

They both are basically the same in the essence of taking advantage of others, but the medium behind that advantage is different. Exploits take advantage of "mistakes" while scamming takes advantage of "ignorance". You can argue that mistakes and ignorance are the same, but ignorance only becomes a mistake once you know about it. If you were ignorant beforehand, it isn't a mistake, but rather ignorance.

Still, Scenarios may vary based on the situation by situation, just like what @20kevin20, it isn't wrong to call it subjective. Most often than not, those that lost something are the ones considered as "victims" and those that got something out of it are considered as the "bad guys", but there are cases that are not as such. What if both ignorance and mistake were filled in both of their cases? A made a "mistake" and B was "ignorant" of the mistake of A, who's at fault? The matter of ignorance is purely subjective though, so it may come off as B probably lying, but who the hell can tell us that right?