You can also use the IRCCloud to connect to #mendix https://www.irccloud.com/ You can even stay connected while you're offline and never miss a message!
Pro tip: If you join, say something. Don't just wait for some activity to happen. :-)
IRC is pretty legit, I'll park myself in there on freenode.
If you're on Windows download Hexchat. OSX I would highly recommend using Textual 5 (it's $5 but worth it if you're apart of a community project that exists on freenode)
I have been on the channel before, but it seemed like everybody was ideling, which is good since that would imply everybody is working :D
It would come in handy from time till time. I'm on there now, the only one. I'm on there for today to see how much interaction there will be with my fellow mendix users.
Needed some help with removing some text from the start of a string. I'll google on for now...
or a bbs...
theres this slack channel for MX-UX that everyone is welcome to join