It's totally not dead. I've thought for years that IRC is underrated now. I'd much rather participate in an IRC channel than something like, say, Slack. Active

It's totally not dead. I've thought for years that IRC is underrated now. I'd much rather participate in an IRC channel than something like, say, Slack. Active channels come and go. Some legacy channels are better than others. Some of them die and people move on to next level, more obscure channels. I just mentioned as an example in a comment above my experience in #python on Freenode which has been overwhelmingly active and positive. You also need to consider when the channel is most active, it's usually gonna be late afternoon and evening in US and European time zones. YMMV.