Do we really think posting lists of every game we've played via backwards compatibility during this generation is interesting discussion? The crux of the OP's argument is "people hardly use backwards compatibility today, so it shouldn't matter that it isn't available in future".
Well, it does matter:
1) A lot of people have invested a lot of money in various digital platforms.
2) These games are in HD, and generally won't look like shit on our spangly new TVs once next-gen rolls around, and therefore, people are more likely than ever to wish to continue playing them. Double up that desire to continue playing them when you weigh in with classic titles that have stood the test of time and have been ported to the HD consoles.
3) Old consoles take up valuable space underneath said spangly new TVs, so many people aren't keen on keeping them plugged in and ready to go.
4) This generation's crop of consoles have very well documented reliability problems, and will not work forever. In fact, I'd be surprised if you can buy a functioning Xbox 360 on eBay for anything other than silly money in 10 years.
I'm mainly playing devil's advocate.
As I said, I used backwards compatibility this generation and enjoyed the experience of only having to have one system at a time to enjoy multiple generations of games (on the Sony side), but I just don't think it's something that people should expect.
Gaming is my life; it's both my hobby and my career, but I still don't have this overwhelming sense of entitlement that I see so freely expressed over the NeoGAF.
I'm not sure you understand what "devil's advocate" means. You're quite clearly expressing
your own anti-consumer opinions here.
Why are you talking about the pc? The pc isn't a closed system made by a single company. Gaming consoles are not pcs. Digital purchases of any kind are not permanent.
If you can't follow what I'm saying, I can't help you.
I'm speaking in plain English.
edit: See bitoriginal's post below if you're still confused.