I’ve seldom seen an OSR discussion that didn’t veer off into definitions territory, and never seen half a dozen people come up with fewer than a dozen definitions. Maybe it doesn’t matter.
Though for me, depending on the definition, it’s either got some pretty interesting bits, or it’s something I don’t care for at all.
Older versions of D&D aren’t my favourite rule set by a long way, and traditional dungeons are an occasional thing for me, and I don’t like the extreme player skill “pixelbitching” take at all. But old D&D does have a sometimes interesting take on fantasy, the universal language bit is interesting, and hacks and some of the more original setting ideas can be great. I also love the sandbox ethos.
I don’t intend to threadcrap here. Maybe I should expand this into a post of my own.