I understand that they have to keep updating it to keep it fresh for long-time super-experienced players, but it's like an entirely different game now, compared to the one I first played years and years ago.
Also, item identification still exists, even if everything else you mentioned has been changed in some way. :P
but yeah, it's nice to be able to go back and play older versions, but at this point I don't even know which version I would like to play. I'm fine with playing trunk here and there, it's just interesting to see a long-term project like this gradually shift focus over time.
I just liked playing as a kobold berserker, a cannibalistic little bastard tooling around a dungeon, getting into trouble, killing stuff and chopping it into chunks to eat, and occasionally being rewarded by my blood god.