Is it too hard to communicate with your jungler if he asks you a SIMPLE question?

I'm a jungler, and usually i play with my friends. My friends are elo plat, they're not pros but they know basic stuff like how lane priorities allow me to invade, having objectives uncontested and stuff like that. When i play alone my teammates are usually silver-gold, so i don't expect them to know those things except rare cases. Whenever i start a game, and i see my lane pushing i don't invade because i don't expect them to know how invades work but at least i ask "how many of you know how to set up a gank?" for those that don't know, setting up a gank means that if we have a leona support, and i ping the gank, she'll ult, or E-Q to initiate the gank, or if u're playing Nami u'll use ur ult to slow them and ecc ecc. Now, either u know or not how to set up the gank, is it so hard to say "yes" or "no"? Why do people only use chat to flame or pings to flame teammates when they miss a skillshot but not when they actually have to ping SS? Why can't u answer a question that wasn't meant to flame anybody?