And then there’s Discord, which also takes over from existing forums, but which has the additional distinction of being a complete pain to search.
The trend of more and more projects and companies using Discord as their primary forum for support, docs, and discussion boards is probably not one that will be looked back on as having been a good idea.
I worry that there's so much valuable information stored in prior chats that will simply disappear if Discord ever goes away.
In addition to this, this valuable information is not accessible/searchable via the web without a Discord account. Plus there's the 100 server limit for free accounts, which can become a problem depending on how many projects/communities one is involved with.
That being said, Discord is convenient and cheaper to license/host communities than Slack, which I think is part of the allure.