@unfa it is all a question of finding the right tool for the job. on IRC you can create as many channels as you want, so for example there is #lad and #lv2 for development, #cardinal and #kxstudio for those specific things, etc
You can DM people if you rather only talk to them of course. If there is a lot of people talking at once, just wait a bit until topic clears, and then have your turn.