At the time of this writing, the front page of r/Movies has posts dedicated to both Gladiator and American History X following this format, the latter of which won Best Picture, the former of which nabbed Ed Norton an Oscar nom.
These are well-regarded films and I'd wager the arbitrary retrospective angle injected into the title and the discussion constitutes the sub's third rule regarding clickbait. I completely admit this is a small gripe, but I find that it also engenders an often shallow conversation that amounts to "it still holds up!".
Moreover, the use of this format to discuss movies that were insanely popular not that long ago seems a bit unearned. Rarely do these retrospective titles reach farther back than 30 years (I'd wager films from back then are not extremely dissimilar from films of today), and rarely do they discuss very good, overlooked movies.
Just my two cents. I hope I'm not turning into a grumpy old man.