@sil Re the same DB, compare https://boardgamegeek.com/boardgame/1 with https://rpggeek.com/rpgitem/1. They are the same game.
@mavit (see how Honey Heist, linked above, is on rpggeek but doesn't even come up in a BGG search. So do the two DBs share some items? is there one underlying DB but BGG exposes a subset and rpggeek a different subset? Two different DBs but with duplicates? I am confused.)
@sil I'd imagine each database table has a "what site(s) is this row relevant to?" column, that searching and browsing respects (but direct references do not). Notice that Honey Heist can be found on BGG at https://boardgamegeek.com/boardgamefamily/68128
@mavit yeah; I don’t understand the underlying DB structure!