Discord is a replacement for IRC, forums and mailing lists - not for hanging out in meat-space.
Even the success of remote work shows this. People want to avoid the office (and the commute) to get more time with friends, family, and their hobbies. The internet is most successful when it helps people live the life they want in the meatspace, not when it tries to replace it.
There's also nothing stopping anyone from doing that, and it's quite easy. I've always just had irssi running on some server that archives everything and I ssh into the server when I want to chat.
Honestly, not being indexed by google is the least offensive aspect of discord. For most people these days I think it is actually a benefit. Tides are changing, common people are becoming apprehensive about their words being immortalized in some ledger easily accessible to the public which future employers will be able to trawl through for disqualifying out-of-context remarks. The objective in such chat rooms like discord and IRC is to make ephemeral connections to other people and discuss things in the moment, not to build up a semi-permanent corpus of information for the benefit of people googling things in the future.
If it was a channel with a lot of users, also a general bot would often exist.
For example you could call up faqs easily on say systemd in Debian by just hitting !systemd
You could add to the faqs on the fly
All faqs were synced back to the website.
So we're just reinventing the wheel here