I recall taking a look at some other crypto forums some years ago, after somebody suggested a bunch of sites on a given list, only to find, as I expected, that they were rather behind in terms of activity and content:
I really can’t be bothered with other Crypto Forums unless a pretty good reason crops up to ponder them over Bitcointalk. Even so, I’ve taken a quick glimpse at the list (so my first impressions may be wrong):
Bitalk.org -> Seems to be Russian only.
Bitcoin.com -> Not too active (not bad UI).
litecointalk.io -> Not really interested in a Litecoin specific forum + rather inactive.
cryptocurrencytalk.com -> Rather innactive on substantial threads (like the video section).
bitcoingarden.org/forum/ -> Very similar UI (SMF). Structure a bit weird, and 24K members only.
bitcoinforum.com -> Also very similar UI (SMF). Not very active, and just under 18K members only.
allcryptotalk.com -> Not many boards not activity.
cryptorum.com/forums/ -> Very weak in terms of boards and content.
talk.peercoin.net -> Specific to peercoin
mastersofcrypto.com/forum/ -> I like the guides .. but nothing else (+ barely any activity).
So, in summary, none of the above come even close to Bitcointalk neither in terms of content nor, very likely, prestige and history of its members.
I haven’t bothered to look at any alternatives since then besides Cryptotalk, due to the noise it made at the time of being launched, and only to confirm that the debate there was seemingly very unsubstantial and spammy as hell.
I do browse another local forum or two rather sporadically to contrast local news related to regulations and such, but not much else. Bitcointalk should cover people’s needs for information and interactivity on Bitcoin, and there doesn’t seem to be a better alternative (although Reddit could be a complement to ponder).
