I make an active effort to use my native language whenever I get an opportunity to do so. I see it as an accessibility feature. Much easier to understand things when they're in your native language.
How is it accessible when you're limiting your audience to people speaking your native language? Also, English is easier to understand than my native language, which lends itself to getting unnecessary convoluted. Especially when studying, I always look first at English resources, since the one in my native language are made more difficult to understand because of the complexity of the language itself. (My first language is German.)
If I have an audience that entirely speaks the language I try to take advantage of it. It's very common here for people to use English unconditionally in conversations about technology.