SimonG: I guess that is some kind of reasoning I can agree on. But it remains that Abandonware is a highly subjective term. For some people Skyrim might be Abandonware, because it is Steam only.
By that reasoning, the vast majority of terms that we use in this context are highly subjective.
Hell, even the term 'piracy' is highly elastic. Gamers for the most part consider piracy to be downloading a game for free and illegally that is still being sold. The law considers piracy to be downloading a game for free and illegally that is still protected by copyright. Publishers and developers seem to think that piracy is any situation where gamers buy a game and the publishers don't get a cut (e.g. used games).
The point you made about Skyrim was one I was going to make about Velvet's reasoning - namely that just because it wasn't available digitally, didn't make it abandonware by anyone's definition.
Abandonware may not be a term enshrined in law, but the fact remains that there is a generally consistent understanding of the term, and it is a legitimate English-language term with a dictionary entry (Collins): software that is no longer sold or software by its publisher. The specifics may vary, but there are certain 'must have' factors, such as the game being no longer available for sale.
Some people may consider Skyrim to be abandonware because they don't acknowledge Steam as a 'legitimate' platform, but that's like saying that they don't consider Barack Obama to be president because they don't acknowledge his place of birth to be Hawaii. You can twist and turn a concept around all you want, but forming your own interpretation of it does not make it correct.
carnival73: This is really friggin' weird - it's like I've somehow accidentally assimilated everyone and they now all share my ethical philosophy on piracy.
Not really. I think given the general understanding of the nature of game licensing here, many people here have always held this particular philosophy when it comes to copyright.