reddit because the boardgame discussion on here is dead, boardgamegeek doesn't do well unless you're looking at a specific game (and CasualUK is pretty decent)
Facebook because that's where the church tech discussion is and I can sell boardgames so fast on there on the main group for my country.
Both sites main feeds are dead to me though, if Lemmy ever picks up significantly I can see me moving over full time
Twitter/Instagram/Snapchat/LinkedIn have all never been used or deleted.
The answer to is X years too old to start Y activity is almost always no.