I personally never understood why people gatekeep. Like don't you want more people to interact with and talk with your hobby?

Targeted land destruction. I play strip mine in a couple of my decks to take care of lands that do to much. (Cradle, reliquary tower, man lands, nykthos etc.)

The one that always makes me roll my eyes and sigh is whenever I ask for a cut and someone says "sure, let me get a knife"