Nothing to learn there.
It's amazing that when it comes to computers, it is somehow acceptable to be dumb. It's acceptable to not learn new stuff. It's acceptable to not read in order to understand stuff. As can be read in the comments here.
The whole ethos of startups and Silicon Valley has been around finding a market for your product. If people don’t want to use it then you can’t blame anyone but yourself.
Feel free to chat with yourself using an ideologically pure system... it’ll be lonely though.
Disclaimer - A FLOSS dev here.
If you were talking about using these protocols over a telnet session, then I would be more inclined to agree with that statement, but just installing an application, entering a server name and account credentials (the latter of which aren't needed for IRC), and connecting isn't any more difficult than creating an account on slack and connecting by entering the address in the browser.
Regular users have amazing blind spots. Also you’re not giving slack enough credit for their smooth onboarding process.
Of course, but I don't think that Slack has done a better job with this compared to previous solutions. In a lot of ways, it's worse given its performance issues. For example, I never experienced UI lag in a chat application until I used Slack (comparing it with UIs like a GUI IRC application, AIM, ICQ, MSN messenger, Yahoo messenger, Skype, etc). Second, auto-completion and search do not work like they do in previous chat applications (or other applications in general) due to infinite scroll and the default of doing a global search instead of just limiting it to the chat or group. Third, the fact that you're forced to join some channels because you were invited or can't leave a channel because you're the last one in it are other issues that come to mind.
As much as it annoys me too, it appears that people actually using it have enough tolerance for it that it doesn’t matter.