Reddit-style? Why would you say reddit style, and not facebook-style, mastodon-style, or bluesky-style? At least Reddit is arranded thematically, and Twitter is arranged around individuals; this is quite a significant difference.
What makes the reddit style more similar to Twitter than to bulletin board, in your mind? And do we have a modern example of the bulletinBB style since phpBB?
Hacker news is reddit style, too (by far the closest of those listed). Somethingawful is an example of a BulletinBB style board in 2026.