Maxperson
Morkus from Orkus
You say that like people don't enter normal conversations and start throwing around jargon like it should mean something to the people in the normal conversation.The other is useful for talking about how games work and how participants engage with them, and if one wants to take part in that.... well one can just ignore it all and complain that people are using words they don't understand!
It's one thing if a group of you want to talk about GNS in a GNS thread. Knock yourselves out. It's quite something else when people are discussing whether to have an ogre or troll encounter and people come in and start spouting about Player Facing Kickers.